The padlocks set include 4 locks and 12 keys, each pad lock with 3 keys, keys are open style, One key can be used to open all locks from the same set. High Security: Durable solid brass lock body and lock core have strong corrosion resistance, not easy to rust, long service life. High quality material: locker lock with keys' material hardness is high with cutting resistance, compression resistance, small interchangeability. Wide use: padlocks with same keys can use for both indoor and outdoor. lock with key for gym locker, small locks with keys are suitable for backpacks, briefcases, tackle boxes, lockers and storage locks. Brass padlock is small size, light and easy to carry, the lock body is firm. Bring convenience to the owner.