Rigid 5 caster with 5 x 2 cast iron wheel
"Swivel 8 caster, 8 x 2 cast iron (SS) wheel, total lock"
"Swivel 4 caster with 4 x 2 urethane wheel, total locking brak
Rigid 2 1/2 caster with 2 1/2 x 7/8 Protech wheel
Swivel 2 1/2 caster with Envirothane wheel SLB