The Rocelco DADR-46 Sit to Standing Desk Riser allows you to sit or stand, to take advantage of all the health and productivity benefits that come with standing and moving around. It sits on your current desk with no need to buy additional furniture.The spacious 46" W x 23.62" D work surface, allows you to hold up to 3 large monitors. It also includes a retractable keyboard tray that measures 25.625" W x 11" D. EVR Enhanced Vertical Range rises up to 20" and down to 5" , to optimize the ergonomic work position for people of all heights. Gas piston assist allows you to easily raise and lower up to 45lbs. Grommet hole allows you to route cables or add an optional Rocelco single DM1, double DM2 or triple DM3 monitor arm.Place on your existing desk, or create a complete standing desk with the optional Deluxe Floor Stand (DADR-FS). Fully assembled and ready to go!The Rocelco DADR-46 Sit to Standing Desk Riser allows you to sit or stand, to take advantage of all the health and productivity benefits that come with standing and moving around. It sits on your current desk with no need to buy additional furniture.The spacious 46" W x 23.62" D work surface, allows you to hold up to 3 large monitors. It also includes a retractable keyboard tray that measures 25.625" W x 11" D. EVR Enhanced Vertical Range rises up to 20" and down to 5" , to optimize the ergonomic work position for people of all heights. Gas piston assist allows you to easily raise and lower up to 45lbs. Grommet hole allows you to route cables or add an optional Rocelco single DM1, double DM2 or triple DM3 monitor arm.Place on your existing desk, or create a complete standing desk with the optional Deluxe Floor Stand (DADR-FS). Fully assembled and ready to go!