This is a set of two original Maserati rear caliper rebuild kits from ATE to fit most Biturbo models including 1982-94 Coupe, Spyder and 425/430/228, 2.24v, 4.24v, 222 and Shamal and early Ghibli II (pre ABS cars). Not compatible with Ghibli II ABS or QPIV. Includes TWO KITS, enough for both rear calipers. Includes the sealing rings, dust covers and metal retainers and hard-to-find O-rings that seal the two halves.