This is a 3D-printed, ultra-lightweight spur gear cover for the Losi Mini B and Mini T 2.0. This spur gear cover reduces the weight significantly, lowering the center of gravity and improving performance! Ultra-lightweight - significantly lighter than stock, weighing only 0.7 grams Lightweight design lowers the car's center of gravity, improving performance Made from durable ABS, unlike most other 3D printed materials DESIGNED AND MADE IN THE USA! Available in multiple colors to customize your look!