"Grey hard rubber wheel, 2-1/2 x 1-1/8 x 5/16 inch plain bore"
Black soft rubber wheel 2-1/2 x 1-1/8 x 5/16 inch plain bore
2-1/2 x 1 inch sintered iron (semi-steel) wheel
2 1/2 x 7/8 Urethane wheel 3/8 Id metal bushing
