This window sash lock is made of sturdy materials, will not easy to deform or break, and . Good craftsmanship, and can be widely used in sliding windows made of aluminum alloy materials, can also be used for sliding doors, much safer to use. Features -Color:Light Grey -Material: -Size:8.50X3.70X2.00cm/3.34X1.45X0.79in -By using this window sash lock, you can improve the safety and appearance of your windows while reducing displacement. -This practical sash lock can greatly improve the security and privacy of your home, of great use. -These sash locks are proper for use in single hung windows, as well as vertical and horizontal sliding windows. -Simple structure, these locks for window are easy to install and operate, providing strong reliability for safe use. -These window locks can effectively prevent from entering your home, allowing you to comfortably. Package list: 4 x Locks 8 x Screws