Robart Foam Inserts For Scale Wheels 3 3/4" - 4" (FOAM 4)

Robart Foam Inserts For Scale Wheels 3 3/4" - 4" (FOAM 4)

• Fits Robart plastic scale wheels and tires for 2"-4"aluminum wheels
• Fills the gap between the hub and the interior of the tire to make the tire more rigid
  
• Must for all airplanes weighing over 15 lbs.