A centred pneumatic black 3-inch width x 12-inch diameter wheel, with a 5/8 inch bore and ball bearing. The Duraflex solid cushion tire is a blend of granular rubber & chemical accelerators, mounted on a polypropylene centre, and cured under pressure. The load rating is 600 lbs, it is puncture-proof and impact-resistant, and the durometer rating is 80A.