Economical design and smaller footprint fit your budget and your space. Instantly move to sit or stand as you work: simply release hand-brake levers on either side of unit to position the surface higher or lower. Add an accessory monitor mount kit: Attach your display(s) with a riser to provide independent screen adjustment while clearing worksurface space. Provides 15 in. (38 cm) of vertical adjustment. Works well in corner desk configurations and fits on surfaces as shallow as 18 in. (46 cm). 5-year warranty. Sold by each. Black.