The best alternatives to NGRAVE GRAPHENE

Trezor Keep Metal is an aerospace-grade stainless steel capsule for storing your crypto wallet's recovery seed phrase. It features a watertight seal with rubber O-ring, corrosion-resistant black surface treatment, and includes a pre-marking pen and punching tool for accurate letter engraving. Fire, water, and impact resistant.

Coinplate Alpha is a premium stainless steel seed phrase backup made from two 5mm AISI 304 steel plates forming a 10mm thick steel sandwich. It stores up to 24 BIP39 recovery words using an included automatic center punch tool — no extra tools required. Fireproof up to 1,300°C, waterproof, corrosion resistant, and top-rated in Jameson Lopp's extreme stress tests.

The imKey HeirTAB L1 is a stainless steel seed phrase backup tile that supports 12, 18, and 24 BIP39 seed phrases. It is smudge-free, fireproof up to 2000°C, waterproof, and anti-corrosion, compatible with all major software wallets like MetaMask, Coinbase, and Trust, as well as hardware wallets like Ledger and Trezor.

The imKey HeirBOX P1 provides BIP39 hardware wallet backup with support for 64-character private keys, high-strength passwords, and passphrases. It features 4 different tile plates (uppercase, lowercase, numbers, characters) with separate spaces for each tile to prevent seed phrase disorganization.

The imKey HeirBOX S1 is a BIP39-compatible seed phrase backup with A/B double-sided storage supporting 12, 18, and 24-word recovery mnemonics. Using the first 4 letters of each mnemonic word per the BIP39 protocol, it is compatible with all major software and hardware wallets.

The CRYO SLIM is a compact stainless steel backup storing up to 48 recovery words (two full 24-word seed phrases). It withstands temperatures up to 2500°F, is water and corrosion resistant, and features protective outer plates in a design that fits in the palm of your hand.

The CRYO CARD is a playing card-sized stainless steel backup that stores up to 48 recovery words. It is fireproof up to 2500°F, water and corrosion resistant, and features protective outer plates to keep your offline recovery phrase safe from hackers and physical damage.

The CRYO DOT is a compact stainless steel backup solution that stores up to 24 recovery words. It is fireproof up to 2500°F, water and corrosion resistant, and features a compact design that fits in the palm of your hand for offline seed phrase protection.

The SecuX X-SEED PRO is an indestructible stainless steel seed phrase storage system for backing up your private key. It is waterproof, fireproof, tamper-proof, and comes with pre-stamped English letter tiles and an engraver for secure offline backup.

The SecuX X-SEED Plus is a stainless steel seed phrase storage system with a precision punch set and guide. It is waterproof, fireproof, tamper-proof, and comes with a protective case, steel punch set, and guide for securely imprinting your recovery phrase.