Material: The solid door lock made of stainless steel and zinc alloy which is strong and sturdy has a mass of 326g, Provides dependable security. Keyless Security: The four-digit setting provides 10,000 possibilities, providing convenient keyless security without worrying about keys. Outdoor Used: The sliding rod is made of stainless steel, the lock body is made of zinc alloy, and the surface coating protects the lock from rust. Anti-tampering: Come with stainless steel screws which are one-way screws, which is used on products with safety requirements and can only be locked in a direction. Widely Used: door slide lock is designed for security applications on doors, chests, wooden wickets, kennels, shed, room and so on.