some trash brand rotor you pick up at auto zone. The drills and slots are just for heat and water dissipation.. the quality of the rotor is important. also, it doesnt say they are zinc coated.... im not sure if you care about the rotor rusting (looks nasty and makes your wheels look bad)... but i would suggest zinc plated. If I were you i would get a good quality brembo rotor that is zinc plated :)