Descriptions:Not divided left and right，it can be opened on both sides.Applicable to all kinds of hanging window and casement window.It consists of high-strength engineering plastics and stainless steel, which effectively solves the problem of insufficient strength of pure plastics sliders, and solves the problem of serious wear caused by pure metals. Specification:Product Name:Window HingeMaterial:202 Stainless SteelColor:Silver ToneTotal Dimension(Folded): 215mm x 22mm/8.46'' x 0.87'' (L*W)Window door connecting plate: 170mm / 6.69"(Length)Thickness: 2.5mm / 0.1"Package Content:1 x Window Friction Hinge.