Setup & Engraving Tips

Kit Contents:

Black jewelry bag includes your electric engraver and screws.

Silver pouch includes the Key Stack plates and four tamper evident security seals.


Insert 2 AA Batteries into the black tube with the positive side to the top.

Line up the tube notches with the engraver head.

Give it a quarter twist to lock into place.

Engraving Tips:

Use safety glasses.

Press the white-button and start the engraver slightly above the plate.

Hold the engraver like you would a pen.

Use a light touch when engraving and let the tool do the work.

Once you see the silver exposed you know you’ve made a lasting impression in the steel.

If you press down hard it’s harder to control the tool.

Use capital letters when possible to enhance legibility.

Tamper Evident Seals:

Place all four seals around each edge of your Key Stack.

Record your seals numbers.

Recovery Safe

Bitcoin Seed Storage
Buy Now

Will a plastic hardware wallet, backed by paper, be enough?

Hardware Wallet Seed

Stainless Steel Key Manager

100% User Controlled

Electric engraver included

No third parties

Metal Seed Storage Kit

Metal Seed Storage

Your Stack – Your Specs

Add up to 10 plates per stack

Store one 24 word recovery seed per plate

Build over time with Expansion Packs

Extreme Protection

Fire Test = A

Acid Test = A

Crush Test = A

Jameson Lopp tested Key Stack by blasting it with a 2500°F butane torch, soaking it in an acid bath and tormenting it under a 20-Ton press. Key Stack passed all tests with straight A’s.

Jameson Lopp Stress Test


email: if you would like to be notified when more inventory is available.

Build To Your Specs

Key Stack


Kits include: stainless steel plates, electric engraver, nuts/bolts and a set of tamper evident security seal stickers.


Buy More and Save

Combo Packs


Store multisig keys in separate locations with combo packs!

Kit Includes:

THREE – 24 Word seed plates (100% stainless steel)

THREE – Front and Back Cover Plate sets (100% stainless steel)

THREE – Nut & Bolt Sets (100% stainless steel)

ONE – Diamond Tipped Electric Engraver

Expansion Plates


Build out your stack with expansion plate add-on’s! Key Stack expands to hold up to 10 seed plates per stack.

Private Key Management

Relying on a piece of paper to backup your plastic hardware wallet leaves you vulnerable to physical disasters like fires and floods.

Harden your security model by upgrading the physical robustness of the most valuable component – the seed itself.



email: if you would like to be notified when more inventory is available.

Security Seals Included


International Shipping

Key Stack is shipped from the USA through USPS Priority Mail for a flat shipping rate of $29.99.

Please note that any customs fees assigned by your local jurisdiction are not included in the sale price and are the sole responsibility of the buyer.


COVID related delays have spread throughout the supply-chain and orders are taking longer to arrive than ever before. The reported number of packages shipping has caused capacity crunches affecting both the movement of shipments and the customs clearing process. This has negatively impacted service times world-wide.


If you would prefer to expedite your shipment please email us at prior to placing your order and we can provide a spot quote using DHL or UPS as the carrier of choice. As a small business that has chosen not to partner with a 3rd party shipping service (see privacy policy) we do not have access to bulk discounts. The typical rates we receive back from DHL range from $75-$125 depending on location with service times averaging three days world-wide.








Who we are

We want your business – not your data.

The traditional eCommerce business model thrives economically by using massive data collection to persuade the end user to convert a transaction. We are taking the opposite approach.

We collect the minimum amount of data required to legally process your transaction – and remove it from our servers within 30 days. Order data is then stored encrypted with names, addresses and emails anonymized from the data sets. Some data may be held longer by third-parties (partner privacy policies linked below).

eCommerce Sites Are Notoriously Leaky with Data

Web hosting providers, payment processors, and third party shipping companies all require data from the customer to function properly. Here is what we are doing to mitigate the impact of your data:

Web Hosting:

We take your security seriously and rebuilt Key Stack using open source tools WordPress and WooCommerce. Our hosting provider – WPEngine – sets the standard for security and privacy.

Payment Processors:

BTCPayserver for the win. Why use anything else? If you insist on using dirty fiat – we do accept it – but your stuck with using PayPal as our payment processor. PayPal is a data collecting company – and they don’t delete customer order data. Our recommendation is to use BTCpayserver and then stack more sats with your fiat.


We need an address so we know where to ship your order. We couldn’t find any third party shipping services that can handle your data to our standards so we are going back to old school hand-written shipping labels.

Metering out each shipment means we lose our bulk discount with third party shipping providers – but we gain back privacy.

International orders require additional information to clear customs and we do need to use a third-party to create the paperwork and ship these orders. We do this directly with USPS, skipping the additional third parties commonly used for ecommerce.

PRO TIP: Stop shipping online orders directly to your house! Use a PO Box and package mail forwarding services.

What personal data we collect and why we collect it

We need a shipping address, email address, recipient name and payment for us to successfully process your order. A telephone number is also required for international shipments. Within 30 days of order shipping your data (that we hold) will be anonymized.

What rights you have over your data

We like to make sure that we have a line of communication available from when you place your order until you receive it and are satisfied with your order. After that, we have no use for knowing your name, email address, and shipping address and are happy to expedite the data delete request. Email us at with the subject line Data Delete Request and we will take care of it right away.

We are required to retain sales data for accounting, tax and legal purposes that includes order invoice amounts and destination shipping zip codes.


You can read our cookie policy here.

Embedded content from other websites

Articles on this site may include embedded content (e.g. videos, images, articles, etc.). Embedded content from other websites behaves in the exact same way as if the visitor has visited the other website.

These websites may collect data about you, use cookies, embed additional third-party tracking, and monitor your interaction with that embedded content, including tracking your interaction with the embedded content if you have an account and are logged in to that website.

Who we share your data with

Depending on your order, any of the following third parties may receive information about your order. We’ve included links to their privacy policies below.







Email us at

This is a sample page.


Our refund and returns policy lasts 30 days. If 30 days have passed since your purchase, we can’t offer you a full refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Several types of goods are exempt from being returned. Perishable goods such as food, flowers, newspapers or magazines cannot be returned. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases.

Additional non-returnable items:

  • Gift cards
  • Downloadable software products
  • Some health and personal care items

To complete your return, we require a receipt or proof of purchase.

Please do not send your purchase back to the manufacturer.

There are certain situations where only partial refunds are granted:

  • Book with obvious signs of use
  • CD, DVD, VHS tape, software, video game, cassette tape, or vinyl record that has been opened.
  • Any item not in its original condition, is damaged or missing parts for reasons not due to our error.
  • Any item that is returned more than 30 days after delivery


Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds

If you haven’t received a refund yet, first check your bank account again.

Then contact your credit card company, it may take some time before your refund is officially posted.

Next contact your bank. There is often some processing time before a refund is posted.

If you’ve done all of this and you still have not received your refund yet, please contact us at {email address}.

Sale items

Only regular priced items may be refunded. Sale items cannot be refunded.


We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at {email address} and send your item to: {physical address}.


If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.

If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and they will find out about your return.

Shipping returns

To return your product, you should mail your product to: {physical address}.

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

Depending on where you live, the time it may take for your exchanged product to reach you may vary.

If you are returning more expensive items, you may consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.

Need help?

Contact us at {email} for questions related to refunds and returns.

The owner of the product also serves as the personal engraver of their private information. It is the customer’s responsibility to ensure that their engraving is legible. Engraving stainless steel is an extremely effective way to make a lasting mark. Once the product is released to and modified by the customer, it is the customer’s responsibility to periodically inspect the Crypto Key Stack to ensure the product maintains legibility to the customer’s standards.

The user is 100% responsible for their private keys and funds. Crypto Key Stack, and any shareholders affiliated with Crypto Key Stack release all liability once the product has been modified by the customer.

By using the Crypto Key Stack and/or the included engraver, you are agreeing to not hold Crypto Key Stack LLC or any shareholders affiliated with Crypto Key Stack liable for any legal claims. The engraver is intended for limited use on the Crypto Key Stack only. The user should wear eye protection gear while engraving.

Engraver requires two AA batteries, not included.

Velas Commerce

Velas Commerce – our Commerce Tech Experts of choice –  helped us rebuild our website from scratch while significantly improving our Hosting, Shipping, and Payment processing practices.

Security and Privacy is a top priority for Key Stack, and Velas Commerce played a critical role in helping us reach our goals.


The first major step was breaking up with Shopify and rebuilding with WooCommerce. After further review, it became apparent that Shopify was a potential security vulnerability. The company has too many employees privy to viewing website logs. Shopify itself is a honeypot of data – data they “own” – when you use a website hosted by them.

Rebuilding Key Stack with WooCommerce and WordPress was mission critical. These are open source, and self-hosted tools – giving us greater control over how your data is used and stored.

Part of our security strategy is to only collect the essential information required to complete your transaction — and then replacing personally identifying information with XXXXX on our servers thirty days after your order.

Payment Processors:

Velas Commerce integrated BTCPay Server to our website and it’s hands down the smarter way to pay. We still have a traditional payment processor, PayPal. Keep in mind – PayPal is a data collection machine as discussed in our privacy policy. We don’t recommend using them when possible.


Many website owners use third-parties services such as Shipstation or GoShippo to create the shipping labels. We decided to work around these services to generate each label in house for shipments delivering in the USA. 

Key Stack is committed to providing a safe, secure and private shopping experience. Velas Commerce helped take us to the next level and we highly recommend working with them!

If you have an eCommerce store it is in your customers best interest to reach out to to schedule your free consultation today.

At the forefront of commerce technology with development, training, and consulting. Velas brings the future of Tech to your business now.