Description This is window safety lock which is made of premium material for durable and practical use. Tools to instantly lock sliding doors and windows. No need to drill holes, prevent forced prying of windows from the outside, protect your safety and family safety, easy to disassemble and reuse. Features - Color: Black. - Material: Plastic, steel. - Size: 5.60X3.80X2.50cm/2.20X1.49X0.98 inch. - Made of premium material is strong and durable, anti-scratch, anti-wear workmanship, easy to open the surface. - Put it on the window or door bar, open and close by the part that needs the window. - Prevent thieves and children from climbing the window, indoor ventilation, improve air circulation. - Thicken the cable to effectively prevent impact. Simple and easy installation. - Perfect for patio doors, sliding glass doors, sliding windows, etc. Made of premium material is strong and durable, anti-scratch, anti-wear workmanship, easy to open the surface. Put it on the window or door bar, open and close by the part that needs the window. Prevent thieves and children from climbing the window, indoor ventilation, improve air circulation. Thicken the cable to effectively prevent impact. Simple and easy installation. Perfect for patio doors, sliding glass doors, sliding windows, etc.