This is an organizer/insert for the boardgame HEAT. The model allows you to store the contents of the "Heavy Rain" expansion, and places for the eighth pawns.
Gearset boxes are supported with organic supports that can be easily removed with a thin file.
You can find here the 3mf for multicolored gearbox parts : Jeu HEAT - Boitier de vitesse by GAYAL - MakerWorld