Description Designed with a sleek black finish, this window sash lock blends seamlessly into any home decor while providing child safety. The adjustable window security lock features multiple settings to control the window opening size, preventing accidental falls. Suitable for both PVC and aluminum windows, this childproof solution ensures peace of mind for parents. Easy to install with included screws, it serves as a durable sliding window limiter that resists wear over time. This window fall lock is ideal for households seeking enhanced protection against potential hazards. Features -Color:Black -Material:Carbon steel -Size:17.00X4.50X1.35cm/6.68X1.77X0.53in -Size:4.70X4.00X1.30cm/1.85X1.57X0.51in -Flexible window control: the five level adjustable window limiter allows precise control over window opening size, ensuring child safety and preventing accidental falls with a secure window lock mechanism. -Easy installation for safety: designed for both pvc and aluminum windows, this child proof sliding door lock is easy to install with screws, offering reliable protection against children opening windows unsafely. -Durable and reliable design: made of robust materials, the adjustable security lock is built to last, providing long term stability as a dependable window fall lock solution for your home. -Stylish and functional: featuring a sleek black design, this window track lock seamlessly blends into any decor while enhancing the safety of vertical or sliding glass windows effectively. -Multi window protection: ideal for multiple windows in your house, these child safety window locks provide comprehensive coveragePackage list: 2 x Window lock 8 x screws