CJSJ Combination Lock, 4 Digit Padlock for School, Luggage Suitcase Baggage Locks, Filing Cabinets, Gym & Sports Locker, Toolbox, Fence, Case, 1 Pack (Black) Safety,Zero chance of unlocking without password,10,000 possible combinations. No key,no burden. Suitable for school and gym locker,toolbox,fence,cabinet,storage. Full mechanical lock widely used on luggage zippers,drawers,cabinets etc. Simple in operation,quick in unlocking,top ranking in security. Fashional and beautiful in shape,strong and durable in use.