On-Stage KSA7100 Utility Tray for X-Style Keyboard Stands Fits any On-Stage X-Style keyboard Brackets Adjust to arm spreads between 11" and 22" Tray Dimensions: 28 x 14.5 Great for Lighting Boards, Controllers, DJ Turntables, Midi Controllers, Desktop Synths, FX units, Drum Machines, Mixers, Equipment Racks, Monitor Speakers, Laptops, Percussion Instruments, and more. Comes with 2 EVA strips for slip-free equipment placement