UnionKey Store
UnionKey steel backup
UnionKey steel backup
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Fireproof. Waterproof. Shockproof.
Precision-Engineered Mnemonic Protection
Lock-Secured Structure
The UnionKey Steel Backup secures your seed phrase in precision-engineered stainless steel plates, firmly fastened with screw-locks to prevent slips or misalignment. Built to last centuries, it offers tamper-proof, disaster-resistant protection — far beyond what paper can provide — ensuring your digital assets remain safe.
Built for Absolute Resilience
Resistant to acid and alkali, chemical corrosion
Every steel plate is crafted to withstand the harshest environments, ensuring your recovery words survive even when everything else doesn’t.
Your Words, Etched in Steel. Forever.
Automatic Center Punch Included
Include a professional-grade center punch, allowing you to mark your seed words cleanly and permanently — no pens, no engraving machines.
Just press and click — your private key, forever engraved in steel.
Technical Specifications
Size: 50*30*4(mm)
Weight: 98g
Materials: Titanium Alloy TC4
In the Box: 1 KeyTag、1 automatic center punch、1 guide