Features:*Made of fine metal alloys, ensuring high quality and service life.*Automatic door bolts, springs, and pull rings.*Easy installation: including set up screws, smooth to replace, , and sturdy.*Can be used to augment the security of doors and sash, appropriate for home use, doorways and sash, etc.*Spring power latch is acceptable for doors, sash, cabinets, sheds, doors, warehouses, cabinets, drawers, and dressing tables.Specifications:*Name: Sliding Ring Door Pin/Automatic sashLock*Material: Aluminum alloy*Color: Black,white,silver*Product Name:Sliding Ring Door Pin/Automatic sash Lock*Size:4.13 x 2.36 x 2.17 inchesPackage Content:1* Spring Door LockNote:1. The genuine coloration of the object could also be barely various from the images proven on online page caused by many factors similar to brightness of your computer screen and light brightness.2. Please allow slight manual measurement deviation for the data.