The stainless steel seed phrase plate is an offline physical backup tool exclusive to the crypto industry, specially designed for BIP39 protocol mnemonic seed phrases. It replaces paper, plastic and electronic memo devices, completely eliminating asset security risks such as flammability, moisture damage and loss of paper records, as well as hacker attacks on electronic storage.
Our factory mass-produces 304 stainless steel seed phrase plates formed by integrated stamping. Resistant to acid and alkali corrosion, high-temperature fire and rust even when soaked in water, these plates support multi-specification storage of 12-word, 18-word and 24-word seed phrases. They fall into four major series: portable card-sized models, mini keychain models, double-sided high-capacity models and combined encrypted models, with two optional crafting processes—hole-punching and letter etching. Fully compatible with all hardware cold wallets available on the market, they are essential accessories for long-term secure storage of digital assets including Bitcoin and Ethereum.