KT2 Ergonomic Under Desk Keyboard Tray sit stand up computer keyboard

raise keyboards above desk-height: kt2 easily swings keyboards up to 8.5” above desk height letting you quickly stand up and type standing desk keyboard tray: position keyboards up to 10” below your desk to provide proper height-separation between keyboards and monitors for optimal sitting or standing posture negative tilt: type with a neutral or negative tilt and easily adjust your typing angle throughout the day for enhanced wrist health adjustable mouse pad: always-level mouse pad tilts so your mouse is flat. the width between your mouse & keyboard is adjustable to improve shoulder posture commercial-grade: engineered by uncaged ergonomics for daily use in the most rigorous offices, the patented kt2 is built to last from steel and compact board (no plastic) Purchased from here:
https://www.amazon.com/Ergonomic-Under-Desk-Keyboard-Adjustable-Negative/dp/B01BRLJPZQ
Never opened, never used.