Material: The stair gate screw is made of high-quality steel core screw and ABS plastic, sturdy and durable. The door wall protector is made of high-quality ABS and rubber, sturdy and non-slip rubber, preventing holes, scratches or other damage to your home. Your walls. Size: Stair gate screws: M10 thread, 3.5 cm / 1.37 inch diameter screw measures 8 cm / 3.14 inch in length. Door wall protector: 8 cm/3.14 inch diameter, 2.5 cm/0.98 inch thickness. Easy to Use Install: No tools required and no damage to the wall, just turn the nut and create a counterforce against the wall, quick and easy to install. To install. Simply place the wall caps with your hands between the screws and the wall, the target wall protector stays in place more stably. Note: Replacement Stair gate screw is only suitable for M10 pin holes. Please check the pin hole on your baby gate first. too much pressure. Suitable for stairs, doors, walls or other smooth areas. Doors need to be assembled. Wide application: the door wall protector is suitable for all areas. most doors pressure. Such as child gate, safety gate, passage gates, baby gates for stairs, pet gate with door, safety gate for children, stair gate for toddlers, shower clamp bar, kitchen, etc. Description: 1. This adjustable replacement screw for stair gate allows easy assembly and disassembly without tools and without drilling holes in the wall. 2. The stair gate wall protector protects your children and pets while protecting your walls. The soft rubber base prevents scratches, scratches or bumps on your wall. through pressure screws. 3. Wall protection for safety gates for more security. Your baby gates will be held securely in place. If your sweet pet pats or the child shakes it, you don't need it. Worry about the door movement. Specifications: Hardware: Screws Steel core + ABS plastic, ABS + rubber Color: White Size: 8 * 3.5 cm / 3.14 * 1.37 inches, 8 * 2.5 cm/3.14*0.98 inches Package Included: 4 x Stair gate screws 4 x Gate wall protectors Note: 1. Due to different monitors, there may be color differences. The actual color depends on the actual product received. 2. Manual measurement, the size has a small error.