This product features a sturdy zinc diecast constructed housing with a steel pin. It comes finished in white. This lock mounts to the surface and has a 1-1/2 in. long throw. * Compatible with 1-3/8 - 1-3/4 inch thick sliding doors from 28 - 48 inch widthCan be used on sliding windows as wellInstalls on inside or outside sliding doors, includes fastenersTelescopic bar requires no cutting for fitClear anodized aluminum painted whiteEasy to install