TAMIYA15499 JR HG Carbon Wide Rear Plate - (1.5mm)This is a 1. 5mm thick carbon fiber rear plate, which provides superior rigidity to a mini 4WD chassis, keeping the car's form and lessening time loss on the race track. The parts are marked with a printed Tamiya logo and roller diameter positions. Carbon Wide Rear Plate x1 Attachment holes for 9, 11, 13, 17 and 19mm rollers. Compatible with MA, MS, AR, VS, Super II, Super XX and Super TZ X chassis cars. Some chassis bodies may require modification.