Features an innovative designed 5 pieces caster wheel "Octopus " based, with diameter of 42.0 cm., adjustable height center pole ( minimum of 102.0 cm. to maximum 135 cm.0 ) and sturdy, spacious storage case made of engineering plastic for inflation system. The unit is also equipped with durable clear tubing with dimension of 310.0 mm. ( Length ) X 10.0 mm. ( Outside Diameter ) and 5.0 mm. ( Inside Diameter ). Comes complete with calibrated inflation system and hardware kit.