380mm rotors,6 piston calipers, teflon coated steel braided brake line and adapters for the calipers.Need I say more lol.absolutely phenomenal product,car stops on a dime.i told them what i wanted and within an hour they sent pictures to confirm.i can’t speak more highly of the customer service,i will always go to them for all my brake needs and will refer anyone who wants a phenomenal product at a great price.i needed front brakes pretty bad but i waited until i received these,it was so bad they were getting to metal on metal and i stopped driving my BMW and drove my mustang until they arrived.perfect fitment and excellent operation.i will be upgrading my 2 piston rear brake to 4 piston by summers end.these brakes will take a pounding, they will handle anything you throw at them on the street.they are meant for the track but make great all around brakes if your looking for the best. Again Cynthia is the best for keeping me posted on everything and getting them to me really fast.