This sturdy height-adjustable table base is made of steel with a powder-coat finish for added strength and durability. The telescoping build allows it to be adjusted to fit a variety of tabletop sizes, and comes in two color options (Black and Gray). The base quietly adjusts from 24 1/2" to 50"H (including a 1" work surface) at a rate of 1.5" per second, allowing the user to easily switch from a standing height to a sitting height throughout the day. The quiet motor ensures that co-workers are not disturbed by this adjustment. A digital handset with four memory presets allows for quick, easy adjustments as well. there is also an optional pull-up power module with four electric outlets, two USB charging ports, 8-foot power cord and surge suppressor with indicator light to accomodate use of electronics. Paired with tabletops, this unit is great for use in computer labs, personal work areas, classrooms, meeting spaces or home offices.