4 x 1-1/2 urethane wheel 3/4 RB
4 x 1-1/2 urethane wheel 5/8 RB
4 x 2 Moldon Urethane wheel 1-3/16 plain bore
"4 x 2 Moldon Urethane wheel 3/4"" RB"
"4x2 Mold-on Urethane Crowned with 3/4"" Bearing"
4 x 1-1/2 urethane wheel 1/2 RB
4 x 1-1/2 urethane wheel 1-3/16 plain bore
