Widely used: Sliding window locks can be easily applied to most environments, such as patio doors, sliding glass doors, sliding windows in hotels, homes, hospitals, schools and offices to provide children with a safe environment Durable material: made of stainless steel, the main material is strong and durable, the material is thick and the screws are thick, equipped with soft plastic rubber pads, scratch-resistant, wear-resistant, easy to open, durable sliding door and window locks 【Safety performance】Put it on the window or door bar, open and close at the part that needs the window, prevent thieves and children from climbing on the window, limit indoor ventilation, improve air circulation, and protect the safety and anti-theft of family and children > 【Easy installation】No punch installation, card installation, no punching, easy replacement, no other installation tools. Each window lock has an inner hexagon with a key and can be tightened by turning the hexagon wrench to the right. Precise design: silicone rubber pad resistant to scratches, friction and aging, high temperature protection window. Suitable for most aluminum alloy and plastic windows, vertical or horizontal sliding doors and windows.