Powerflex Polyurethane Bush kit for Volvo C30 (2006 onwards) Rear Anti Roll Bar To Chassis Bush 21mm - PFR19-1204-21 - - Bush Size: 21mm - PRICE IS PER CAR KIT, NOT per bush. Powerflex usually price their bushes singly, but we have combined the QTY and price to keep it simple for you!