This is a Pair of M-Chassis Shaped Tire Inserts from Tamiya.

FEATURES:

Inserts support the tire--similar to the air pressure in a full-size car.
Fits Tamiya's M-chassis cars.
Maintains positive grip and provides an even contact to the ground.
Black foam construction.

INCLUDES: Two M-Chassis Shaped Tire Inserts.

REQUIRES:

Tire
Tire Glue

SPECS:

Inner Diameter: 1.3" (35mm)
Outer Diameter: 1.9" (48mm)
Width: .82" (21mm)