hey guys im a manager at an autozone in New Jersey and yea you get pads with a lifetime warranty. Whenever they wear down you just bring them in and exchange for new ones. The regular semi-metalics are decent the Duralast Gold with a lifetime warranty as well are better. The best we carry are carbon metallic's (performance friction) a pretty good pad comes with a two year warranty which can be replaced as many times as you cna wear down the pads in two years.