This foot operated speed control comes in a heavy cast iron metal housing. The extra weight provides added stability and control. The bottom surface of the C. SCT is covered with non-skid material. It features the same durable, solid state electronics as the C.FCT. The ergonomics allow precise and reliable speed control with your foot. For use with 115 Volt M.SR, M.SRB, M.SRH and M.SRBH motors. CSA Listed. It is interchangeable with Foredom's C.FCT-1 and C.EM-1 controls. 7” long, 5” wide, 2-1/2” high, packaged wt-6 lb/2.7 kg, 4 Amps, 60 Hz Can also be used with these 115 Volt Discontinued Motors: Series CC and DD, Series L and LB, Series F, Series PG and 1/8 Horsepower Series S, SB, SR and SRB motors. The C.SCT-1 can also used with a Dremel 732 flex shaft tool to vary speed.