A fantastic way to keep your keys
The physical storage of your wallet password effectively avoids hacker intrusion and virus infection. The waterproof and flame-retardant hard material is an excellent way to save the key.

Sharp wear resistant Tungsten Carbide Pen
The high-strength tungsten pen can be used to draw lines, carve and mark with a variety of materials. It is extremely wear-resistant and can easily carve several aluminum plates

Cryptocurrency Steel Wallet with Engraving Pen Set
Compatible with most cryptocurrencies and altcoin (bitcoin, ethereum, litecoin, dogecoin, monero, ripple, neo, omisego ) using any of the mainstream cryptocurrency wallets: Trezor One, Trezor T, Nano Ledger S, Ledger Blue, Ledger Wallet, BitBox, KeepKey, Keep Key Gold, Electrum, MyCelium, Jaxx, GreenAddress, Kasse Hardware Wallet, CoolWallet S, MyEtherWallet, Coinomi, Bither or any other hard wallet that supports BIP39 and master passwords from password manager.
Specification:
Pen Length: 5,6inches/14.2cm
Pen Weight:53.5g
Material: Aluminum, Tungsten Carbide
Package Content:
1 x Carbide Pen
2/4 x Bitcoin Wallet
4/6 x Anti-Tamper Sticker
4/6 x Pair of Button

Note:
Be careful of sharp and dangerous nibs. Keep them out of reach of children