These are the optional Hot Racing 10 pieces Titanium Tie rod Suspension Linksfor the Axial SCX II -10 and Other Scale Crawlers. FEATURESCNC solid Titanium rod construction, With red Aluminum collarINCLUDESOne ten pieces set Titanium construction, With red Aluminum collarSPECIFICATIONS- Two 7.5 mm x 80 mm - Two 7.5 mm x 101.5 mm- One 7.5 mm x 71 mm- Two 7.5 mm x 93 mm- Two 7.5 mm x 56.5 mm- One 7.5 mm x 107 mmCommentYou will need all the stock plastic ball endAX31186Replace part of Axial stock part numberAX31419 AX31420Ax31421 AX31422AX31423