Bosch contact points open and close the primary circuit of the ignition coil for energy storage and voltage conversion. Long recognized as an industry leader in ignition and fuel systems, Bosch's quality, innovation, and experience are the foundation of the entire line of engine management components. Product Features:Top quality components made to last over 100 million switching cyclesPolyimide rubbing block designed to withstand extreme stressWear and temperature resistantMeets or exceeds OEM specificationsGuaranteed fit and function