Mechanical code locks 1

タイトルまたは説明

Features: xxxxx code adopts permutation. It can be chosen from twelve characters including *, #, and number from 0 to 9, arbitrary permutation to six characters, about **5,**0times of alternatives are available. 2. Spy-Proof. Wrong code will result in the resetting of the correct code entered. It means before entering correct code, arbitrary character can be entered as cover code, then unlock with correct code. 3. Easy to change code. Take apart the lock core, on which the code can be changed. 4. Overcome the defects of common mechanical code lock that password can be judged from the touch feel and voice.