Latches Hinged entrance door designed to swing inward for entry ♪Designed for hinged entry doors that swing inward to enter the residence ♪ Helps prevent them from opening doors by themselves to enter or enter dangerous areas. ♪Easy to install, key-operated lock can be installed next to door shell, mounting hardware included ♪ Durable welded steel chain with bolts that slide into the keyed mechanism to lock.