Material: The main part is made of high-quality, durable ABS plastic. The base is equipped with high-quality PE soft rubber pads to prevent any marks on the wall. Wall Guard Protector: Wall protectors are designed to protect your walls, doors, and stairs when installing baby gates or pet gates. No tools are required for installation; simply protect walls, doors, or stairs. Non-Slip: The soft rubber pad is non-slip and adheres to the wall to prevent the door from sliding. If your sweet pet bumps it or your child shakes it, you don't need to worry about the door moving. Multi-function: Safety door stoppers are easy to use for children and are used in many types of pressure doors, such as: child safety door, security door; pet gate, baby gate, baby gate for stairs, pet gate with door, baby gate tensioner, child gate, tension rod shower, etc. Wall cups can be used for shower curtains with tension rods. Top Circle Diameter: 8CM; Inner Circle Diameter: 4CM, so make sure the screw end does not exceed 4CM Features: No need to drill holes, easy to install, adjust, and remove. Wall protection for pressure doors protects walls from damage, dents, and scratches. Excellent product to prevent damage to walls when installing a safety door. Pressure mounted. Prevents dog from accessing cat. This not only makes the door safer but also protects your paint. Recommended for: Anyone who wants to install a baby gate and wants to save a painting. Specifications: Material: ABS+Silicone Single Size: 8 x 2.25 cm Universal Use: Safety door stoppers are used for many types of safety doors, e.g., baby gates, child gates, stair gates, pet gates, child safety gates, child gates, stairs, door passage, tension rod, etc... They can also be used anywhere: walls, stairs, doors, kitchen, bathroom, etc... Wall cups can be used for shower curtains with tension mounted rods.