The embodiment of Yamaha's signature obsession for quality.Providing the full natural expressiveness attainable only with the best kits,this set truly unleashes the drummer's musical potential. Box 1: DTX900M drum trigger module. Box 2: DTP903 pad set 1: PCY135 x 2, PCY155, RHH135, KP100, CH-750 x 2, SS-662; includes all connecting cables. Box 3: DTP904 pad set 2: XP120SD, XP120T, XP100T x 2, CH-755, HS-740A Box 4: RS700 steel tube rack