Features: This window lock can be strongly locked when closed, and protecting you and your family from safety threats. Make from zinc alloy materials, have excellent hardness, wear resistance and anticorrosion and rusts resistance. Suitable for left or right opening sash, flexible to adapt to different types of Window. With mounting screws, the installation process is simple and quick. Enhances the level of safety and protections of window, but also harmoniously blends with various home decoration styles, adding elegant yet practical sense of beauty. Specifications: Materials: Zinc alloy Color: White/Black Length: about 65mm/2.56inch Package Includes: 1set Sliding Window Crescent Lock note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color.