Material: The main body is made of high-strength and durable ABS plastic. The bottom is equipped with a high-quality PE soft rubber mat to prevent marks on the wall. Wall Protector: Wall protectors are used to protect your walls, doors, and stairs when installing door gates, babies, or pets. No tools are required for installation. Easily protect walls, doors, or stairs. Non-slip: The soft rubber pad is non-slip and hugs the wall to prevent the door from slipping. If your cute pet hits or the child shakes it, you no longer have to worry about the door moving. Multifunction: The safety door bumpers can be used to protect your door. Child safety doors are used in many types of pressure doors, such as: children's door, safety door, baby gate, baby gate, baby gate for stairs, pet gate with door, baby gate tensioner, child gate, tension rod shower, etc. Wall-mounted sinks can be used for shower curtains with tensioned fixing rods. Top circle diameter: 8 cm; inner circle diameter: 4 cm, so