Made of superior formulation Hyper-Flex(TM) polyurethane and uses high precision bearings. Experience little or no rolling resistance! The unique polyurethane material and design allows smooth, unimpeded rolling for indoor/outdoor ease of movement over cracks, washers, misc. debris, etc
Coil Spring Dampener Donut; Red; H-2.25 in.; Dia. 3 9/16 in.; 2 pc.; Performance Polyurethane;