Steelex D2652 Polyurethane Wheel， Red， 4-Inch<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Polyurethane</li><li>9 mm bore size， 4mm diameter</li><li>275 pound weight capacity</li><li>275 pound weight capacity</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41zrGBfbbIL.jpg" noproxy>