Function: 1 Easy to install, no drilling required, no additional tools, no handyman required. 2. Made of high quality material, non-toxic, durable, durable, long life. 3 Suitable for aluminum alloy sliding window, ensure safety and protect your property and family. 4 The contact surface is smooth and will not scratch your window, easy to remove and reuse. 5 Portable, easy to move from window to window and carry. Specifications: Condition: 100% Brand New Item Type: Window Lock Material: Aluminum Alloy Color: As Picture Shown Size: About 3x2 .5cm / 1.2x1in Weight: About 380g / 13.4oz Application: As Window Lock Package List: a> 10x Window Lock 10x Accessories 10x Short Key