High Quality: The door stopper rubber made from durable Zinc Alloy, which is high resistance of corrosion and environmental. The door stoppers is rust proof, Sturdy and strong to handle the weight of the door. With a rubber tip at the end to prevent damage to the door, the wall or other furniture.Protect doors wall: High-density rubber offers a cushioning effect to reduce noise and shock. Stop you smashing your walls with door handles and avoid marks on the door. Thickened and widened detachable base,give excellent protection against the door banging into the wall.Wide Application: The wall mounted door stop not only can be used for home, bedroom, bathroom, office etc, But also can be used in other applications beyond doors. Wall Mounted Door Stops can be placed in hard to reach places that also need protection from any kind of bumping or scuffing like walls, skirting board, side tables, wardrobes etc.Easy to instal: Step 1, to punch holes in the wall mounting position. step2, the plastic expansion tube is driven into the hole with a hammer. Step3, the screw is screwed into the base to fix. Step 4, screw the door rod clockwise. For details, please refer to our window instruction picture