Wheel Diameter: 3", 4", 5"

Wheel Tread Width: 1-1/4"

Weight Capacity: 3"- 210lbs 4"-250lbs 5"- 300lbs  Wheel Type: Thermoplastic Rubber  Wheel Durometer: Shore A 75 (+/-5) Bearing Type: 3/8" Precision Ball Bearing  Temp Range: -20° to 180° F