1、The position of the window lock can be fixed at will, the width can be adjusted, and the size of the window can be adjusted freely. 2、Free-installation window lock, easy to use, suitable for most sliding doors and window. 3、Selected high-quality aluminum alloy materials, sturdy and durable, wear-resistant and corrosion-resistant. 4、With good security and anti-theft properties, can prevent children from falling and protect the safety of their families. 5、The surface is smooth, easy to install and remove, and will not cause damage to your window. Condition: 100% Brand New Item Type: Window Lock Material: Aluminum Alloy Weight: Approx. 220g-260g / 7.8oz-9.2oz Length: B Type: Approx. 12.5mm / 0.5in D Type: Approx. 23mm / 0.9in 6 x Set Window Lock (6 x Lock Body, 6 x Key, 6 x Gasket, 6 x Anti-Collision Plate)