Easily remove and install truck tire and wheel assemblies Suitable for tire diameters of 36" to 48" Capacity: 300 lbs. Roller Spread: 19-1/2" Roller Length: 9-1/2" Wheel Size: Diameter 2-3/4", Width 1-3/4", Axle Diameter 3/8" Overall: 50" x 27-1/2" x 20" Shipping Weight: 20 lbs.