Powerflex Polyurethane Bush kit for Vauxhall / Opel ASTRA MODELS Front Anti Roll Bar Mount 20mm - PFF80-403-20BLK - Please check anti roll bar diameter before ordering - Bush Size: 20mm - 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!