By providing a hair curler/roller which comprises a unique, distinctive construction that enables the hair roller/curler to be heated substantially more rapidly than prior art constructions, an easily used, hair curler/roller and heating system is obtained which is capable of providing rapid heating of the hair curler/roller. In addition, the heating system employed for transferring heat to the hair curler/roller is also constructed in a unique manner that optimizes heat transfer, while also being constructed efficiently and inexpensively.In accordance with the present invention, the hair curler/roller incorporates an elongated cylindrically shaped body or core formed from heat retaining metal, such as aluminum. In addition, the cylindrical body incorporates a plurality of thin, interconnected wall members peripherally surrounded by a cylindrical outer wall. Preferably, the unique metal core is easily manufactured by extrusion, thereby achieving a hair roller/curler which is easily constructed as well as capable of absorbing and retaining heat rapidly and efficiently.