Kensington 60009 Standard Keyboard Drawer, 20w x 10-1/4d, Black

The Standard Underdesk Keyboard Drawer frees up desktop space with a
heavy-duty plastic underdesk tray that glides out of sight when not in
use. This adjustable keyboard drawer features easy-glide tracks and
mounting options for four different heights for individualized comfort.
Along with its durable metal ball bearing rails and classic
black color that complements most office environments, the Standard
Underdesk Keyboard Drawer is a cost-effective way to reduce desk
clutter and improve productivity.