Made out of heavy gauge S.S. with concentric rings. Auto-cut heating elements are fitted. to protect the same when bath gets dry. To work on 220/230 volts A.C. supply. 300 x 250 x 100 m.m. (6 Holes of 75 m.m. dia) 355 x 405 x 75 m.m. (12 Holes of 75 m.m. dia)