3 x 1-1/4 v-groove wheel 1/2 plain bore
"4 x 2 V-groove wheel 3/4"" RB"
4 x 1-1/2 urethane wheel 3/4 RB
3 x 1-1/2 cast iron V-Groove wheel 3/4 RB
4 x 2 Moldon Urethane wheel 1-3/16 plain bore