The Bobrick B-687 Surface-Mounted Door Bumper is the ideal way to protect the walls and partitions in your commercial bathroom by preventing doors from banging against them. The bumper can be used on any type of hard surface and is popular on drywall walls and particleboard toilet stalls. The base of the unit is crafted from type-304, 22-gauge stainless steel and measures 2 inches in width by 2 inches in height by 5/16 of an inch in thickness. A black nylon post extends from the base of the unit and attaches to the black neoprene bumper, which is incredibly durable and meant to absorb force. To install the unit, a sheet metal screw provided by the manufacturer is inserted in the center of the bumper. Once installed, the bumper extends 2-1/8 inches from the mounting surface. Installation instructions are included from the manufacturer and easy to interpret.