This 2 Pack Plate Caster Set features heavy-duty steel construction with a 5" diameter and 2" width polyurethane molded wheel design. With a total capacity of 2000 lbs, each caster can handle up to 1000 pounds. The swivel design allows for easy maneuverability with a 360-degree rotation. Additionally, the roller bearing with hardened raceway provides extra strength and durability. This caster set is perfect for all your heavy-duty mobility needs.