DescriptionThis is a multi-functional sliding window safety lock. To prevent sudden closure of doors and windows or children's movement. Lock can be set to a normal state, if not necessary, can be set to a normal closed state. Insurance buckle design to protect home safety.Features- Color: Black.- Material: Plastic, steel.- Size: 5.60X3.80X2.50cm/2.20X1.49X0.98 inch.- Made of premium material, 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.- Not only can it be used to prevent daily crime, but also for long-term outings, opening and closing windows of babies and toddlers, as well as for fighting the elderly.- 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.Packing list: 1 x lock2 x keys