Quick assembly 3-stage, 3rd leg electric height adjustable base, for use with Offices to Go NLxxxxRHT return tops and MLIR30B base to create L-shaped configurations. Worksurface support is adjustable to accept top widths from 35" to 42"W x 23"D and range of adjustability of 22.6" to 48.2"H with 1" thick top. Shipped easy to assemble in 1 carton. Tested to meet or exceed ANSI / BIFMA standards and is compliant with the emissions guidelines set by the GREENGUARD Environmental Institute. Black finish. Overall Dimensions: 22.8"D x 21.6-47.2"H. Product not purchased as a complete table assembly will not be covered under Global's Lifetime Warranty.