Our adapter replacement kit is suitable for all pressure doors (10mm), baby doors, pet doors, and safety child anti-theft doors with doors. Suitable for most places, walls, stairs, etc.【 Stable and Safe 】 The surface of the spiral flat cover is equipped with ABS anti slip adhesive to increase friction and prevent wall wear. It won't damage your walls and won't slide easily.【 Material 】 Sturdy metal material, durable and reusable; The sturdy and soft transparent rubber end helps ensure sufficient friction to secure it in place and protect walls and stairs.Easy to install: No tools required, no holes will be drilled on the wall. Simply rotate the nut to generate a reverse force on the wall and install it quickly and easily.The threaded spindle replacement kit includes 4 baby door screws and bolts.