The Kyosho LA-20 parts bag is the suspension shaft set and contains the suspension shafts for the Lazer ZX, ZX-R, ZX-RR and ZX-Sport.
It comes with 2 x front pivot shaft, 2 x rear pivot shaft and 4 x the hub pin.
The pivot shafts are mounted in the recesses of the arm brackets. The hub pins are held in place with an e-clip.