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