This Alesis DM Electronic Drum Stage Rack & Cymbal arm set is one of the best drum racks on the market and can accommodate a large electronic drum set. It"s compatible with almost all bar mount electronic drum sets, including the Alesis DM4, DM5, DM6, DM7, DM8, DM10 and most other Alesis/Roland/Yamaha/Simmons/Ion models.Includes:Alesis DM10 Stage Rack2 x 20" Cymbal ArmsDrum key and Hex Key for constructing/deconstructingInstruction Sheet