1. Large storage space, can put keys, access cards, room cards, bank cards, U disk, etc.
2. Mechanical principle, high-precision industrial design, precise operation, simple and smooth
3. Curved edges, smooth and non-scratchy
4. 4-position password wheel, 10,000 sets of passwords can be easily changed at will, high security, anti-theft strong
5. Safe and reliable, to prevent loss, waterproof and dustproof
6. Material: ABS plastic
7. Size: about 12.8 x 9.3 x 4.3cm
8. Weight: about 250g

Setting password step by step:
1. Initial password 0-0-0-0, open the combination lock
2. Toggle the modification hole to move from point A to point B
3. Turn the password wheel to set the desired password
4. Toggle the change button from point B to point A