It is front short arm only for Yokomo YD2 Chassis Series

To complete the assembly you need additional item : 1. Mini Ball Bearings 3x6x2.6 @4 for each arm end (see picture ex2) 2. M3 Bolt 40 mm or more @2 3. M3 Nut/Locknut @2

For the rod to the suspension block I make my own 3 mm aluminium rod and not using the yd2 stock rod, it doesn't fit the 3x6x2,6 bearing although the stock yokomo YD-2 arm rod for what I know is 3mm.