Window security locks can be used on aluminum, wood and vinyl windows, suitable for vertical and horizontal sliding windows, single-hung windows and double-hung windows or doors. They are common locks for homes, public buildings, etc. that require sliding windows.SpecificationMaterial: Aluminum AlloyBase Size: 66 x 15 x 21 mm / 2.6 x 0.6 x 0.83 inch (L*W*H)Handle Size: 150 x 70 x 42 mm / 6 x 2.75 x 1.65 inch (L*W*H)Distance between hole centers: 45 mm / 17.72 inchPacking List: 1 Set Slider Window Latch, 4 x ScrewsAdvantageThe lock is made of aluminum alloy, which is hard and not easy to break, wear-resistant, corrosion-resistant, rust-resistant, and durable.The surface is painted, with good texture, and the beautiful and elegant design adds a decorative effect.InstructionThe installation operation is simple.