Set the perfect height when sitting or standing, when you choose this electric, two-stage, height-adjustable table base. Durable, powder-coated steel base features a 250 lb maximum lift capacity (maximum capacity includes the sold-separately table-top), a 19" lift\/lower range (from 27" to 47") as well as a standard up-and-down control set. Dual-motors provide speeds of up 0.8" per second (depending on overall load); and though designed specifically for use with ALETT Series Reversible Laminate Rectangular Table Tops (sold separately), these steel-frame bases attach to most common rectangular tops ranging from 48" to 72" in width and 24" to 36" in depth. Integrated crossbar supports prevent racking while ensuring overall stability. Adjustable leveling glides help you compensate for uneven floors. Base includes integrated cable-management channels and a 9.8 ft power cord. Quick setup with fold-out legs—requires minimal assembly. Table tops and bases are sold and shipped separately—ORDER BOTH.