Wheel Diameter: 4", 5", 6", 8" Wheel Tread Width: 2"

Weight Capacity: 4"- 500lbs, 5"- 600lbs, 6"-720lbs, 8"-800lbs Wheel Type: Polyurethane on Polyolefin Wheel Durometer: Shore A 95(+/-5) Bearing Type: 1/2" Roller Bearing Temp Range: -45° to 180° F