Roadmaster 210 Baseplate Plug for 1-1/2 Inch Inner Diameter Round Tubes - 1 Pair. These heavy duty plugs help keep out dirt, gravel, and grime when your baseplate extensions ( the front arms) are removed. Each plug is stamped with the Roadmaster name and will give your towed vehicle that finished look. For 1-1/2" inner diameter round tubes.
