You can quickly engrave on your seed washer using the alphabets and numbers punch. The 24 peices stainless steel washer is large enough to etch Mnemonic seed words correspond to numbers (ledger/trezor standard).
It is compatible with all BIP39 wallets includes hardware wallets such as TREZOR, Ledger Nano S, and KeepKey.
Safe from environmental factors : Waterproof, Fireproof, Shock proof, Corrosion resistant. Stainless Steel Melting temperature 1510°C/2750°F
This comes with 2 Tamper stickers. These stickers are used to seal the capsule washer inside the envelope when broken or replaced, they will indicate whether the Seed wallet backup has been opened.
304 Stainless Steel Washer( 24 PCS), 1 x Stainless Steel Capsule (Round:56 mm x 15mm , inside Diameter: about 12mm(approx.), 1 x Electric Engraving Pen, 1 x Nut, 1 x Bolt, 2 x Tamper proof sticker, 1 x Storage envelope, 2 x Lemon wipe.