Enhance your Mini 4WD racer! These double rollers offer more roller setting variations and better prepare your Mini 4WD for the racetrack.

Blue color.

With the 9mm roller in the lower position and the 8mm roller in the upper position, it improves your stability greatly and also enhances cornering ability.

Friction is minimal when the aluminum rollers make contact with the course walls, allowing for fast driving.

Can be used with any Mini 4WD and Mini 4WD PRO machine.

Dimensions; Weight: 0.6g, Lower Roller Diameter: 9mm, Upper Roller Diameter: 8mm, Height: 10mm.