– OK if mini 4WD enters the box. You can easily check if the overall length and maximum width of the machine meet the rules of the Tamiya sanctioned competition. – The box is printed with a yellow mini 4WD logo on the bottom of the clear, the side is 2 tone color with neon green. – Can be stored in a portable pit and is easy to carry. – The size of the box is 165 105 50mm. Made of 2mm thick acrylic resin.