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

Weight Capacity: 4"- 800lbs, 5"- 1100lbs, 6"-1200lbs, 8"-1400lbs Wheel Type: Polyurethane on Iron Wheel Durometer: Shore A 95(+/-5) Bearing Type: 1/2" Roller Bearing Temp Range: -40° to 180° F