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- Spacious 48 Surface: The large top surface measures 47.6 x 15.7, providing plenty of room for dual monitor and laptop setups. The 47.6 x 11.8 (10.2 in center) keyboard tray raises in sync with the top surface to create a comfortable workstation