These are the stock replacement suspension parts to the TRF419X racing chassis machine. They are made of a new material and offer different handling and set up options. They fit and are compatible with Tamiya's 1/10 touring car machines such as the FF03/4, TB03, TB04, TA-05, TA-05V2, TA-06, TA-07, and TRF416-419. Set Contents: