Adds a 2nd level tray for additional laptop equipment and/or accessories up to 10 lbs. Can stand alone on any flat surface for quick and easy set-up Clamps to virtually any table, rack case or other DJ equipment with 2 included mounting brackets Features independent height and width adjustments, and an included center rod extension accommodates larger laptops/equipment All contact surfaces are covered with EVA rubber to prevent damage or scratching to mounting surface and equipment Easy line-it-up height adjustments from 9.5" to 14.5"