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- Space Efficient 42' Surface: The top surface measures 42 x 15.7, which provides plenty of room for dual monitors. The 42 x 11.8 (10.2 in center) keyboard tray raises in sync with the top surface to create a comfortable workstation