For a complete set for a Panzer III, you will need to order:
2 x 1/6 Panzer III Front/Rear Suspension Guide - Left
4 x1/6 Panzer III Suspension Guide - Left (PZ3002)
2 x 1/6 Panzer III Front/Rear Suspension Guide - Right
4 x 1/6 Panzer III Suspension Guide - Right (PZ3001)