Abstract: A hair curling roller system having a plurality of post members having the same outer diameter for heating the rollers and a plurality of rollers having inner cavities for mounting the rollers on the posts with such inner cavities have substantially the same inner diameters. There is only one group of rollers, with all having the same outer diameter, being approximately ¾″. Each of the curling rollers include an interior core member having an opening in one lateral end of the core member and longitudinally extending within the core member; this core member is formed of a material highly conductive of heat. An elongated metal sleeve is positioned within the opening of the core member of each roller and is attached to the inside of such core member. In each roller the interior core has a central hub and a plurality of heat radiating spokes extending out from the hub for facilitating the transfer of heat to the outer surface of the roller.