Dynam 5.5" Big Smooth Surface Rubber Foam Wheel for RC Airplane (2pcs - 3.7 mm Hole/axle)

Dynam 5.5" Smooth Surface Rubber Foam Wheel for RC Airplane (2pcs - 3.7 mm Hole/axle)Outer diameter: 140mm/5.5"Inner diameter: 30mm/1.18"Axis hole diameter: 3.7mm/0.146"Height: 45mm/1.77"Weight: 98g (3.5oz)Application: Dynam Primo, Dynam DHC-2 Beaver, any airplanes with suitable installation dimensions and off-road requirements.Features: Durable, super elastic. Works well on grass & paved runways.