FOREDOM ORIGINAL - Be aware of substitutions!! This foot operated speed control comes in a metal housing and the extra weight provides added stability and control. The bottom surface of the C. SCT is additionally covered with non-skid material to improve its stability even further. It provides precise and reliable speed control throughout the entire range with your foot. It is truly a jewelers choice when it comes to selecting quality, reliability and precision. For use on almost every Foredom Flexshaft motor that have ever been made. Works on series S, CC, F, L, the new 1/6 HP reversible SR and just about any other flexshaft brand motor that can plug into it's standard 3 prong plug including Pfingst, ProFleX and Buffalo Dental. It measures 4" wide x 6-3/4" long x 2-3/8" high. Shipping weight 6 lbs. CSA Listed. 120V 4 Amps 60 Hz. 220v model C.SCT-2 is available upon request. Made by Foredom in USA.