A very flat stirring surface that is 7" x 7". The base is cast aluminum. The top is a chemical-resistant ceramic known as Cimarec™. Provides continuously variable stirring speeds from 200 to 2500 RPM. Integral ring-stand holder accomodates ½" diameter support rod, Flinn Catalogue No. AP8228. Supplied with a PTFE-coated stirring bar. Complete with three-wire, grounded cord and plug. 120 volts, 50/60 Hz.