KEEP CHILDREN SAFE: The child safety lock can help keep sliding windows locked, prevent children from falling, and prevent others from invading. These child safety locks protect them from harm. Suitable for most doors and windows: The child safety lock for door leaves is equipped with a rotating switch, easy to change the distance of the card slot (0.98 inch/2.5 cm-1.57 inch/4 cm), easy to use, suitable for most windows and doors. Does not scratch the window: this child door unit can be used for both windows and doors. The child safety stop is non-slip and with a flexible protective cover, it will not scratch the window's card slot. You can use the child safety gate with confidence. Package contents: This gray child safety gate is made of high-quality iron, strong and durable, can be used for a long time. You will receive 2 safety locks. Size: 2.36*1.38*0.91 inches (6*3.5*2.3 cm). FRIENDLY CUSTOMER SERVICE: We provide 12 months quality guarantee and service customer friendly for this child safety stop. If you have any questions about the child safety lock, please contact us and we will do our best to solve your problem. Features: Material: Iron Size: 2.36*1.38*0.91 inches (6*3.5*2.3 cm) Color: Gray Package contents: 2 safety locks. The safety cover is equipped with a rotating switch, easy to change the card slot distance (0.98 inch/2.5 cm-1.57 inch/4 cm), suitable for most windows and doors. Reusable safety lock, easy to use and remove. Suitable for sliding doors and windows.