Wheel Diameter: 3", 4", 5" Wheel Tread Width: 1-1/4"

Weight Capacity: 3"- 300lbs 4"-350lbs 5"- 350lbs Wheel Type: Polyurethane On Polyolefin Wheel Durometer: Shore D 60 (+/-5) Bearing Type: 3/8" Precision Ball Bearing Temp Range: -20° to 180° F