Anti-drop, double-safety design Material:SS304 Spec.:10",12",14",16",18", ... /14.5mm/17mmSize: 8 inch---16inchSlot Width: 18.00mmFour bar hinge, Friction hinge, windbreak, friction stay, window hardware, window accessory:: 1) Available ... 8", 12", 14", 16", 18" and 28"2) Window friction hinge is made of high grade stainless steel3) application scope :aluminum ...