Quick assembly : fold-out leg frame. Height range: 24.4”- 50” (includes 1” top). Heavy duty 3-stage steel frame. Anti-collision function. CSA/UL certified and BIFMA certified. 3 programmable memory positions including home. Whisper quiet <50dB. Max weight capacity: 265 lbs. 5 year warranty on electric and steel components. Compatible with work surfaces from 24 to 30 inches deep, by 48 to 84 inches long. Work surface not included. Black finish.