Quick lock for safety - Applicable for sliding door/window and keep kids and pets from getting into a dangerous areaQuality material - Made of quality PP material, safe and non-toxic, durable, and not easy to break. Colorful dragonfly design can also inspire kid's imagination2 gears adjustable - the length of the window locks can be adjusted, 2 gears designed for little gap and fully close window, looking after baby safety, or opening up a small gap for air conduction in the room2 Steps to Use - Self-adhesive nano tape for on-the-go baby lock easily installed on window/walls, leaves no residue even after yearly useMore Purpose - Our baby window locks can also be used as wall decoration of the baby's room and window, or to be a wall-mounted hook for clothes and towel