Double D Industrial Rubber Bumpers | Wall Protection SystemProtect your building and property with Impact Resistant Wall Bumper Rails The solid rubber buffer is pre drilled and the fixings are concealed, creating a smooth surface around the bumper to avoid damage or materials attaching. The wall bumper guard is anchored at 500mm intervals to increase strength. These wall bumper rails are most commonly used in freezer rooms, as the Double D bumper design is completely resilient to extremes of temperature and