【Heavy Duty Caster】:FOVERSWIVE's Industrial Casters are made of high-quality polyurethane molds, bright galvanized steel wheels and Rig. The casters wheels have strong abrasion resistance, are not easy to rust, and have strong shock absorption and buffering performance. 【Caster Size】:Heavy Duty casters diameter: 6 inches, width: 2 inches, top plate: 4x 4-1/2, total height: 7-1/2, Heavy duty caster set of 4 can support load 5000lb, strong load-bearing capacity, so you can buy and use with confidence. 【Caster Ball Bearing】: The 6 inch casters contains roller bearings, which can rotate freely and is shock resistant. The plate casters adopts humanized Brake/Rigid/Swivel design, which is quieter in use, and is an indispensable item in the family. 【Widely Use】These Casters are fantastic wheels for many applications like panel trucks,Drywall Cart,U-Boat Platform Trucks, Lift Tables, Dollies Cart,ect.Also High-quality Caster wheel can drastically help you improve your Heavy Duty Caster rolling performance in the right environments. 【Quality Assurance】: First of all, thank you for choosing FOVERSWIVE's heavy duty casters . If you have any questions or quality problems about Casters wheel, please contact us in time, we will solve the problem for you as soon as possible. Product specifications: Wheel material: Polyurethane Wheel diameter: 6 inches Wheel width: 2 inches Caster Top Plate: 4x 4-1/2 Overall Height: 7-1/2 Load capacity: 5000LB Wheel color: Red Number of Casters: 4