Abstract: A curling iron in which two electrically heated winding mandrels with separate independently operable pivoted hair clamps project in spaced side-by-side relation from a handle. The mandrels are angularly adjustable relative to the handle to enable one clamp to be placed in any desired angular position relative to the other clamp and thereby enable waves and curls of various forms and shapes to be formed by the clamps and mandrels. To permit the mandrels to be adjusted angularly relative to the handle, conductive plugs on the ends of the mandrels are adapted to be telescoped in various angular positions into conductive sockets formed in the end of the handle.