[★ DURABLE AND INDESTRUCTIBLE★: Made with grade 304 Steel the Keystone Tablet is the long term solution to helping you safely store and backup your crypto seed phrase due to its resistance to corrosion. The various screws present in the tablet help protect it against deformation. It is also designed to have a fireproof threshold of 1399 to 1455°C / 2550 to 2651°F (House fires go up to 649℃ / 1200°F). ★ SLEEK AND EFFICIENT DESIGN★: Slightly bigger than a credit card the Keystone Tablet is very portable. Easily access the contents of the tablet by sliding it open. You also can make use of the built-in keyhole to secure your mnemonics with a physical lock as well. All alphabetical letters come with anti-tampering stickers and are laser engraved to ensure they are resistant to corrosion. ★ SEED PHRASE STORAGE★: Supports 12 18 or 24 word seed phrases (Only first 4 letters of each word needed).Suitable for all types of cryptocurrencies (Bitcoin Ethereum Ripple Litecoin Dogecoin Cardano Binance Coin Shiba Inu Avalanche Solana Terra Polygon USDC USDT etc.) ★ HUGE RANGE OF COMPATIBILITY★: Compatible with all BIP39 hardware and software wallets (Ledger Nano X Trezor Bitbox KeepKey Coldcard MetaMask Coinbase Wallet Electrum Mycelium Exodus Wasabi Wallet Opolo Cobo ZenGo CoinSmart etc.). ★ WHAT YOU GET★: 1 Keystone Tablet 4 sheets of metal alphabetical letters (252 letter tiles in total) 2 anti-tampering stickers spare screws a screwdriver and a guide. "★ CAUTION★: Due to the large number of screws and welding points in this product It may leave scratches on the surface of the item which is normal. If the product couldnt be opened after long distance transportation please read- https://www.youtube.com/watch?v=i-yFzRg5MTY"]