"Swivel 4 caster with 4 x 2 urethane wheel, total locking brak
"Rigid 4 x 1-1/2 caster, mold on urethane"
"Rigid 4 caster with 4 x 2"" urethane wheel."
Swivel 4 caster with 4 x 1 1/2 Moldon Urethane wheel
Swivel 4 caster with 4 x 2 urethane wheel
