Spring Hinge in 20mm length, 18.5mm flat width for box, carabiner, furniture, etc. Item: Spring HingeMaterial: IronCorlor: SilverSize: 20mm length*18.5mm flat width, can in other sizes.Description:Spring Hinge with a white manganese flake at the middle, in a the flake can be in black, have elastic forceUsage: For wood box, drawer, carabiner, furniture, etc. Useful and durable. Spring Hinge