It is made of high quality silver tone material and used for a long life.Fixing for home door or window, cabinet, tool box, etc ..Piston hinge is usually used for doors. They are very strong but can not be adapted once they are installed.Installed with screw, but the screw is not included here.Mounted hole diameter: 4.5mm / 0.2 inchWeight: 864gMaterial: stainless steelProduct Name: Door HingeMounted hole spacing: 18 x 14.5mm / 0.71 x 0.57 inch (center distance)Main color: SilverAny size (Open): 44 x 31mm / 1.7 x 1.2 inch (L x B)Any Size (Closed): 44 x 18mm / 1.7 x 0.7 inch (L x W)Package content: 80 x door hingeOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.