The Quiklok Z712 is designed for Quiklok Z Keyboard Stands or Mixer Stands or Computer Laser Workstations. This optional laminated mica sliding shelf mounts to main tier of all Z-715, Z-716, Z-725, Z-726, ZM-2034, Z-544 or Z-555 stands & workstations. It's designed to hold all computer keyboards and most 25 to 37 note keyboard controllers...