Description This is a 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: Silver and yellow . - Material: Aluminum alloy. - Size: 3.30X3.00X2.50cm/ 1.30X1.18X0.98in ch. - Made of premium aluminum alloy, which is sturdy and strong, can serve you a long time. - Open the window when the weather is hot in summer, which can improve air circulation, you can use the window locks to fix the window, it can prevent children from falling and prevent thieves. - Each lock is equipped with a hex key, the key slowly through the hole, just holding on the track by key control, no additional installation tools. - It can be used in home, office, school and any places you can think of. - The window locks can prevent children from falling and protect the safety of their families while improving air circulation.Package list: 6 x window limiters