Description This window sash lock is made of zinc alloy, thicken and not easy to break when pulled. The surface is smooth and textured, beautiful, and more durable; improve the look and feel while reducing displacement. Widely used in vertical and horizontal sliding windows, single and double hung windows, etc. Features - Material:Zinc Alloy. - This window sash lock is made of thickened zinc alloy material, wear-resistant and rust-proof - Fine workmanship, excellent texture, flexible and practical, efficient and durable. - It can effectively prevent thieves from entering your home, and makes you live more comfortably. - This sliding window lock has a unique cam action hook design that holds the lock tight when locked. - It can be used in home, office, school and any places you can think of.Package list: 4 x Sliding Window Sash Locks