Swivel Top Plate Caster: Phenolic, 5" Wheel Dia, 1-1/2" Wheel Width, 550 lb Capacity, 6-1/2" OAH | Hamilton Swivel Top Plate Caster: Phenolic, 5" Wheel Dia, 1-1/2" Wheel Width, 550 lb Capacity, 6-1/2" OAH - Phenolic, 550 Lb Capacity, Straight Roller Beari