One gaiter, 2 plastic clips and grease. The single largest reason for the failure of this rugged assembly is contamination. Dirt and moisture will destroy one very quickly. The CV rubber boot protects the joint at all angles but if your boot shows any sign of cracking or scuffing preventative replacement can save a lot of money. This type is made to fit either type of CV joint and sold as a kit per hub. 2 required per car.