Keep your crypto wallet safe by hand stamping your backup recovery passphrase into this seed card for safe and secure long-term cold storage. If you lose your recovery passphrase (seed), you lose your coin forever! Secure your investment by backing up your 12 or 24-word passphrase into this durable metal plate! Compatible with all crypto hardware wallets (Ledger Nano, Trezor, Keepkey), as well as all software wallets. Includes (1) precision laser engraved aluminum metal plate that is highly durable, corrosion resistant, and soft enough to easily be metal stamped; also includes (1) laser engraved aluminum practice blank. We also include detailed step-by-step instructions to help you achieve optimal results. Includes a set of 3mm Uppercase Alphabet Metal Stamps (steel punches), that are designed to fit within the laser engraved cells on the card, and are optimal for working with ImpressSeed Cards. Includes Steel Stamping Block + Rubber Pad, which provides a sturdy surface for stamping, and will help achieve deep, crisp stamped impressions on your card that will never fade away. Includes Stamp Straight Tape, which will help align your stamped impressions so they fit perfectly within the respective numbered cells on the card, and will help secure your blank to the stamping block, while working.