"5 x 2 swivel caster, cast iron (SS) wheel"
Rigid 4 caster with 4 x 2 Cast Iron V-groove wheel
"Swivel 8 caster, 8 x 2 cast iron (SS) wheel, total lock"
Rigid 5 caster with 5 x 2 cast iron v-groove wheel
"Swivel 6 caster, 6 x 2 Mold-on urethane wheel, total lock"