Product Description

Features: 1. Made of stainless steel, with high humidity & fire proof function. 2. No need key or power supply, completely machanical. 3. Arbitary permutation to 6characters, about **5,**0 times are availabale. 4. Easy to reset the code. Just take apart the back core cover, you can change the code by yourself. 5.Peeking- proof: The code will not be disclosed even people stare at the lock during unlocking. 6. Suitable for wooden doors of whose thickness is about ****0mm.