The shop

One hardware wallet. Two things to wear and drink from.

We keep the catalog short on purpose. Engrave 0 is the only device we sell, because it's the only one we'd use ourselves.

OFFLINE KEYS: SECURED ENGRAVE 0 BKS-001 · Air-gapped · Titanium plate included
BKS-001 · Hardware wallet

Engrave 0

A storage-only hardware wallet for the private keys of cryptocurrencies, NFTs, and other crypto-based assets. Keys are generated inside the secure element and never leave it. The device has no radios and no USB data path — every transaction is approved by QR code, on screen, by you.

$149Free plain-packaging shipping over $99
  • Titanium recovery plate and punch kit in the box
  • Air-gapped: no Wi-Fi, Bluetooth, or USB data lines
  • Open-source firmware with reproducible builds
  • Tamper-evident seal, checked on arrival
  • 2-year hardware warranty, 30-day returns unopened
Order Engrave 0

Hardware only. No crypto is bought, sold, or exchanged in this transaction.

Connectivity
None. Air-gapped — QR camera and display only.
Secure element
EAL6+ certified chip, on-device key generation
Display
1.9" monochrome, sunlight readable
Recovery
BIP39 24-word phrase, optional passphrase
Assets supported
Bitcoin, Ethereum & EVM chains, NFTs, ERC-20 tokens
Dimensions
92 × 48 × 11 mm, 74 g
Body
Anodized aluminum shell, tamper-evident seam
Power
Replaceable coin cell — no charging, no cable
Merch

Tees and mugs

Not security equipment. Still opinionated.

BKS-M01Cotton

"Not Your Keys" Tee

Heavyweight 240gsm cotton, small chest print, BKS serial tag stitched on the sleeve. Black or graphite. Sizes XS–XXL. Runs true to size.

$28Order
BKS-M02Ceramic

Cold Storage Mug

12oz ceramic with a matte exterior and glazed interior. "My keys never touched the internet" wraps the rim. Dishwasher and microwave safe.

$18Order

Not sure it fits how you hold keys?

Tell us your current setup and we'll tell you honestly whether Engrave 0 improves it.

Ask us first