This is a Tamiya GF-01 and WR-02 Blue Aluminum Gearbox Support. Provide even greater toughness to your off-road GF-01 or WR-02 chassis machines with this aluminum support plate, which can be fixed to the front or rear of either model. It ensures that the gearbox portion remains tightly closed even during violent impacts, protecting from the intrusion of dust and dirt. Compatible with GF-01 and WR-02 chassis machines.
Includes:

(1) Aluminum Gearbox Support
(4) 3x12mm Screws for attachment