"5 x 2 swivel caster, cast iron (SS) wheel"
Rigid 5 caster with 5 x 2 cast iron wheel
Rigid 2 1/2 caster with 2 1/2 x 7/8 Protech wheel
2 threaded 3/8-16 x 1 stem caster Envirothane wheel SLB
Swivel 3 x 1 caster neoprene wheel threaded stem 3/8-16NC x 1