This is an inner box for the Tamiya Mini 4WD Compact Bag. The color is a transparent red. The compact bag is great for events, but it can be difficult to take cars, parts, and tools in and out. So, I made this. The product includes three boxes (inner dimensions approximately 18 x 11 cm, depths of approximately 5 cm, 3 cm, and 2 cm) as shown in photo 2, and a vehicle inspection size confirmation spacer as shown in photo 5. Please prepare the bag separately. The boxes fit perfectly in the compact bag when stacked in three layers. The boxes can be stacked in any order. Even the bottom box can be opened with a single action. Please insert the spacer into the box for use. The large box can be stacked with the spacer inserted. The dimensions are slightly undersized compared to the vehicle inspection size. Please consider it equivalent to the Tamiya check box. I felt that a simple tray shape was more convenient than having dedicated spaces for motors and batteries. It allows for a high degree of freedom in storage. Photos 3 and 4 show examples of actual use and storage in the bag. Please refer to them. Made with a 3D printer, the material used is impact-resistant PETG. As this is a personal creation, some burrs and surface roughness may be visible, but please understand. Please handle the product with the 3N rule (no returns, no refunds, no exchanges). Tamiya Mini 4WD Portable Pit Pit Box Japan Cup