General description These CSPARKV 4 Pack Aluminum Sliding Window Locks are designed to enhance the security of sliding doors and windows. Made from durable aluminum alloy and featuring stainless steel screws, these locks are built to last and can be reused multiple times. They are suitable for heavy doors or windows, providing an upgraded locking solution for added safety. Technical specifications Dimensions: 6 x 2.54 x 2.4 cm (2.36 x 0.95 x 0.95 inch) Track height compatibility: greater than 1.2 cm (0.47 inch) Track thickness compatibility: not greater than 1.6 cm (0.63 inch) Includes: 4 keys Installation No additional tools required for installation Each lock comes with a hex key Locks are secured by a key control on the track Usage Designed for vertical and horizontal windows as well as sliding glass doors Not suitable for plastic window frames Helps prevent children from falling by allowing windows to be partially open while maintaining security