This rear bumper rubber has a small outside diameter of 20mm, perfect for the inside of the bumper upright.

To use this rear bumper rubber, simply place it inside the bumper upright. It's designed to fit snugly with its 20mm outside diameter. When handling, be gentle to avoid any damage. For maintenance, regularly check for signs of wear and tear. If it gets dirty, you can clean it with a mild soap and water solution. Let it dry completely before putting it back in place.