These are blue colored 4WD rear off-road buggy wheels. The wheel design first appeared in 1991 and they may be used in many of Tamiyas 2WD or 4WD buggy kits for the rear of the car.
Rear Star-Dish Wheel (Blue) x2
Compatible with TT-02B, DF-02, DF-03, DT-01, DT-02 and DT-03 chassis cars.