https://www.brishine-united.com/product/new-ergonomic-products/dual-motors-3-stage-standard-columns-2.html. Model DM23-01R Weight Capacity 120kg/264lbs Height Range 630-1290mm Width Range 1000-1700mm Strok 660mm Speed 38mm/S Noise dB(A) ＜50dB Power Input 100 - 240V Color black white gray