GPMRacing ARRMA NERO 6S BLX Monster Truck Delrin Collars For MAN021 - 10pcs - GPM MAN021/DC MAN021/DC Hopup Parts
1. This delrin collars designed especially the ARRMA-1/8 NERO 6S BLX AR106011/AR106009 and 1/8 FAZON 6S BLX AR.
2. This help leading or back knuckle supply.