This double sit-stand base lets you equip your office with healthier work options for two employees. Height adjusts electronically for easy use. The leg raise range from 28.3" to 46" gives them the option of sitting comfortably or standing for better circulation & other health benefits. Four motors quietly operate the Stage 2 legs at 25mm per second & at 55 decibels. Durable steel frame is compatible with worksurfaces from 43" to 75" wide & from 23.6" to 30" deep. Weight capacity for each half of the base is 220 lb. Each half of the base includes a control box & memory switch that stores four heights for convenience. Double sit-stand base also includes built-in slots for optional privacy panel divider (sold separately). The other accessory for this base is the Lorell Beam & Cable Management Spine (sold separately).