The front upper deck provides rigidity and stability to the front section of the vehicle. It is made of 3.5mm thick carbon fibre, a material that is strong, light, and resistant to heat, and able to withstand impacts and vibrations. Carbon fibre is composed of thin strands of carbon atoms that are woven together in a pattern that gives it its strength and flexibility. It will improve the performance and handling of your RC car, as well as give it a sleek and modern look.