They are made of a semi metallic compound. Guaranteed to fit the following models: 1997 1998 1999 2000 Kawasaki KX80 - You will receive 2 sets of pads, enough to replace the Front and Rear Brakes. We purchase & sell items that are overstocks and closeouts from distributors, some packaging may be ripped off as it may be a brand the distributor is no longer carrying.