DuBro 3-1/2" Treaded Low Bounce Wheels have flown on more airplanes over the years than any other wheels on the market! The wall thickness is consistent throughout the wheel giving you a balanced tire. Comes complete with a sporty nylon metallic hub. Works well on grass & paved runways.

Specifications:
Diameter: 3.50" (89mm)     
Axle Diameter: 5/32" (4mm)     
Weight: 79 grams/wheel     
Width: 1.150" (29mm)