Retractable Belt Barrier Yellow Clamped Wall Mnt, 11ft Blk/Ye Belt (F) This retractable belt barrier with durable ABS protective case mounts directly to the wall or fastens to posts with various mounting styles.The WMXLine 140's 7.5 foot, 9 foot, 11 foot, 13 foot, and 15 foot belts can be conveniently extended or retracted as needed.