Steel wire length 18.8cm, steel wire thickness 0.3cm, B--combination lock base: 7.5 * 6.2cm, weighing about 55 grams, A--combination lock: base side length 7.1cm, weighing about 63 grams. Applicable to multiple scenarios. Change password: 1. Adjust the lock to the initial password: 000, press and hold the switch to open the lock; 2. Use the tool to resist the adjustment code in the password adjustment interface (do not release it) and replace the new password at the same time (bring your own tool, remember the password); 3. After the password is set, disrupt the password to be locked. Keyless Refrigerator Lock: 3-digit combination lock design, no need to worry about losing the key or searching for it everywhere. Easy and smooth to use, just turn the dial and press the button to open the refrigerator lock. The default combo is 000 and directions on changing the combo are provided in this listing. DO NOT forget your combination Multiple Applications: Our fridge locks for kids are your lifesaver if you have safety concerns for kids. The digital child-proof refrigerator locks can be widely used for furniture, household appliances, drawers, window, cabinets, microwave ovens, freezers, washing machines, etc. This is ideal for ensuring the safety of children.