This is a window safety lock which is made of plastic material for durable and practical use. It can prevent forced prying of windows from the outside, protect your safety and family safety, easy to install. It can be used in home, office, school and any places you can think of. Features - Color: Transparent - Material: Plastic - Size: 7.50X6.00X0.50cm/2.95X2.36X0.20in - It can prevent children from opening the window too large and causing , safe to use. - Can fix the window in place and cannot be pulled or opened, effectively anti-theft device. - You can use the window locks to fix the window, it can prevent children from falling and prevent thieves. - Effectively prevent your child from opening the windows by his own, anti-theft and keeping the fresh indoor air. - The sliding window limiter can prevent children from opening the sliding door and turning . Package list: 6 x sliding sash stoppers