The Bobrick B-253 Surface-Mounted Roll Towel Dispenser is a durable, theft-resistant option for use in commercial washrooms where space is limited and does not allow for a traditional, cabinet-style paper towel dispenser. The unit consists of a heavy-duty cast aluminum bracket with a satin finish and a spindle made from molded and extruded black ABS plastic and is designed to mount on any type of hard surface. To reduce waste, the spindle will only turn 3/4 of a revolution and is counterbalanced, so that it automatically returns to its upright position after each pull. In order to prevent theft, the spindle can only be opened and removed from the unit with a special key. The Bobrick B-253 Surface-Mounted Roll Towel Dispenser measures 12-1/2 inches in length by 4-7/8 inches in height and can accept perforated paper towel rolls that are up to 6 inches in diameter or 152 millimeters in length.