Create Instant Active Standing: VIVOs desk riser provides on-demand standing throughout the day for the freedom to get out of your chair and relieve muscle tension, reduce stress, and increase productivity -Patented- Bamboo 31.5' Surface: The top measures 31.5 x 15.7, which maximizes space while still providing room for dual monitors. The 31.3' x 11.8' (10.5' in center) keyboard tray raises in sync with the top surface to create a comfortable workstation