Features:The electric lock is mainly adopted carbon steel for inner material. Strong and safe to use.Security: latch hook can bear 150kg traction, won't obvious permanent deform permanently, shockproof, anti prying.Compact, easy to install, no left, right, front, reverse side limitation, and allowing mechanical lash-up unlocking position.Self Elastic Design: Elasticity adjustable, suitable for weight 0.5~4kg door. Application: Delivery Lockers, refrigerated cabinet, mail or newspaper box, Self-Service Locker, Book Counter, Changing Clothes Cabinet etc.