1The carbon fiber upgrade kit is made of high quality 3K carbon fiber material and CNC engraving to ensure installation accuracy. 2Lightweight and hard, high flexibility, it can improve the drift performance, and the drifting posture is graceful without worrying about being folded. 3The bottom plate adopts a hollow two layer sinking design, which allows the wind spoiler to enter the body better when the car is running. 4The hollow two layer sinking design is not only beautiful but also allows the battery to have a better heat dissipation effect. 5The installation is simple, remove the original car parts, and directly install the carbon fiber upgrade kit with the original car's screws. Item Type: RC Accessories Material: Carbon Fiber Colour: Black Floor Size: Approx.338x82mm/13.3x3.2in Second Floor Size: Approx.167x40mm/6.6x1.6in Applicable Models: For 3RACING D4 Remote Control Car. 1 x Carbon Fiber Soleplate 1 x Second Floor