Widely used : Sliding window locks can be easily applied to any home. most environments, such as patio doors, sliding glass doors, sliding windows of hotels, residences, hospitals, schools and offices to give children a safe environment Durable material: made Made of stainless steel, the main material is strong and durable, the material is thick and the screws are thick, equipped with plastic soft rubber pads, anti-scratch, anti-wear , easy to use open surface, durable sliding door and window locks Security performance ;SafetyPut it on the window or door bar, open and close near the part that needs the window, prevent thieves and children from climbing in. The window, limits interior ventilation, improves air circulation and protects the safety of your home. and family and children's anti-theft Easy installationNo punching installation , card installation, no punching, easy replacement, no other tools. Each window lock has an internal hexagon with a key, and can be tightened by turning the key hexagonal to the right Precise design: silicone rubber pad resistant to stripes, friction and aging, protective window high temperature. Suitable for Most plastic aluminum alloy windows, vertical or horizontal sliding doors and windows