https://www.ebay.com/sch/i.html?_nkw=3M+Adjustable+Keyboard+Tray&_sacat=0&_dmd=2

3M Adjustable Keyboard Tray

Regular price
$192.00
Sale price
$129.00

Keyboard tray features separate height and tilt adjustment levers that ensure a positive lock so an accidental bump won't loosen them. Single platform provides spacious support for both keyboard and mouse. Includes 3M Precise mousing surface, which can extend the life of wireless mice up to 75 percent, and a leatherette gel wrist rest with antimicrobial protection. Keyboard tray provides 6in. of height adjustability and a 25 degree forward/backward tilt range. Made by 3M.