Clinton's Power Series blood drawing chairs are the pinnacle of the Clinton product line. There are many features that make the Clinton Power Series the best power chair in its class, including great looks, smooth electric height adjustment, and the classic comfort of padded surfaces. H (Hydraulic) Blood draw chairs make use of a stable hydraulic lift that makes them very easy to use. The large foot pedal on these phlebotomy chairs allows the chair to rotate for precise positioning to make phlebotomy easy.