A Set of 4 Casters Green Polyurethane on Cast Iron 4" 5" 6" 8". 4"x2" - 4 Caster Set. 4 Rigid - 4 Swiwel - 4 SB (4 Swivel with Brake) - 2R + 2S (2 Rigid + 2 Swivel) - 2R + 2SB (2 Ridid + 2 Swivel with Brake) - 2S + 2SB (2 Swivel + 2 Swivel with Brake). 5"x2" - 4 Caster Set.
6"x2" - 4 Caster Set. 8"x2" - 4 Caster Set. Top plate : 3-15/16" x 4-1/2". Diameter : 4" 5" 6" 8". 6: 1,000lb / ea.8: 1,100 lb / ea. Overall height : 4": 5-1/2", 5": 6-1/2", 6": 7-1/2", 8": 9-1/2". Polyurethane on Cast Iron Wheel.