Features a thick cores design with enhanced durability and protections, combined with a tension spring at the bottom of bolt for smooth, effortless operate This surfaces bolt designed for added protections, installs conveniently out of reach Its sliding bolt designs ensures doors are highly secure and stable Crafted from brass, this door bolt ensures great strength and durability Perfect for both indoor and outdoor use. Suitable for wooden and metal doors, sheds, baby gate, fences, gardens, yards, and barn doors, Manufacturer: Xinsheinelry