About this item. 10-digit push button padlock with 5 pre-defined digits (unchangeable) - Uses: garden gates, pool fences, cabinet, gym locker, safety box, suitable for children and the elderly due to its ease of use. 10-digit padlock easy and quick opening with 5-digit locking mechanism. Hardened steel shackle. Each padlock is individually factory tested to ensure smooth performance before packaging. Manufacturer's locks provide superior security to protect your belongings against theft. This sturdy combination lock uses a 10-digit push button system. Hardened steel locking shackle and 5-digit locking mechanism. Robust die-cast zinc housing. Random preset numbers for each padlock, they cannot be changed. The password for this padlock has been set, and each lock has a unique and permanent password, so we must remind you not to forget its ID card password, 5 preset numbers (unchangeable). < / p> Unlock method: (1) press this number according to the number of your identity card. (2) Buckle under the lock. (3) The locking buckle opens automatically. Locking method: (1) Press the lock button (2) by return number. See more details.