A hair curling rod device for creating tight spiral curls for all hair textures, with or without the use of heat includes a top member and a bottom member. The top member has a relatively flat orientation and a flat bottom side. The bottom member has a convex orientation to the top member and a substantially circular cross-section. The top member is connected to the bottom member at a first end by a U-shaped connection. The U-shaped connection biases the top member toward the bottom member. The top member has a first length and the bottom member has a second length. Where the second length is longer than the first length, where the bottom member extends beyond the top member at a second end. The bottom member has an upward angled portion at the second end where the bottom member extends beyond the top member at the second end.

A hair roller for wrapping therearound a hair portion is a concave cylinder, which has a normally oval cross section at a top portion and a bottom portion thereof larger than a normally oval cross section at a middle portion thereof of an oval cylinder; an oval cylinder, which has at least one normally oval cross-section, or a concave oval cylinder. The hair roller is optionally provided with a hair-retaining structure formed on the roller body for grabbing the hair portion.

A hair holder (1) of the present invention includes a tubular body (2) and a fixing member (5). The tubular body (2) has a first surface sheet (23A) and a second surface sheet (23B). The second surface sheet (23B) has a plurality of slits (25) that extends in a width direction and that is intermittently arranged along a longitudinal direction. The fixing member (5) has a first member (5a) and second members (5b) that can be detachably joined together. The first member (5a) is arranged on the first surface sheet (23A) on the side of a first opening (21) located at a first end in the longitudinal direction. The second surface sheet (23B) has a central region (M) in the width direction, where the plurality of slits is provided, and a pair of side regions (S) each of which is located on opposite sides of the central region (M). The second members (5b) are arranged in the pair of side regions (S), respectively, so as to extend in the longitudinal direction.

A hair holder (1) of the present invention includes a tubular body (2) and a fixing member (5). The tubular body (2) has a first surface sheet (23A) and a second surface sheet (23B). The second surface sheet (23B) has a plurality of slits (25) that extends in a width direction and that is intermittently arranged along a longitudinal direction. The fixing member (5) has a first member (5a) and second members (5b) that can be detachably joined together. The first member (5a) is arranged on the first surface sheet (23A) on the side of a first opening (21) located at a first end in the longitudinal direction. The second surface sheet (23B) has a central region (M) in the width direction, where the plurality of slits is provided, and a pair of side regions (S) each of which is located on opposite sides of the central region (M). The second members (5b) are arranged in the pair of side regions (S), respectively, so as to extend in the longitudinal direction.

A hair roller for wrapping therearound a hair portion is a concave cylinder, which has a normally cross section at a top portion and a bottom portion thereof larger than a normally cross section at a middle portion thereof an oval cylinder; an oval cylinder, which has at least one normally oval cross-section; or a concave oval cylinder. The hair roller is optionally provided with a hair-retaining structure formed on the roller body for grabbing the hair portion.

A hair treatment method for curling a lock of hair using a hair holder. The hair holder includes a tubular body which has an opening located at a first end and an opening located at a second end of the tubular body, and configured to allow a lock of hair be inserted from the first end opening of the tubular body toward the second end opening and to be capable of being rolled up. The method includes inserting a lock of hair into the hair holder, rolling up the tubular body together with the lock of hair inserted therein, so that the number of turns of the lock of hair is less than one, and curling the lock of hair in this wound state. A hair holder in which the tubular body is configured to be wound less than one turn is suitably used in this hair treatment method.

A hair treatment method for curling a lock of hair using a hair holder is provided. The hair holder includes a tubular body into which a lock of hair can be inserted from an opening at a first end of the tubular body toward an opening at a second end thereof, and the tubular body is configured to be capable of being rolled up. The hair treatment method includes inserting a lock of hair into the hair holder, rolling up the tubular body together with the lock of hair inserted in the tubular body so that a large diameter portion that has a tubular shape and forms an outer circumferential portion and a small diameter portion that is located inside the large diameter portion and has a space between the small diameter portion and the large diameter portion are formed, and performing curling while maintaining this wound state.

A hair setter apparatus generally includes a housing and a heater assembly having a first heat delivery rail and a second heat delivery rail mounted in the housing in spaced parallel relationship to each other. The apparatus further includes a plurality of hair setters. Each of the hair setters has a central body with opposing web plates spaced from each other to define a mounting slot extending longitudinally of the hair setter and configured to slidably couple the hair setter to one of the heat delivery rails along a longitudinal edge of one of the heat delivery rails. The hair setter is sized relative to the insert opening for insertion of the hair setter through an insert opening and onto the respective one of the heat delivery rails within the interior space of the housing.

A hair curler has a cylindrical body with a net attached to a first end of the cylindrical body, the net invertable to permit extension of the net around the cylindrical body, holding hair in place that is wrapped around the cylindrical body. Because no hard plastics or other hard or rigid materials are present, the hair curler is comfortable for a user while sleeping or lying.

A dual member hair roller device designed to produce spiral curls for hair lengths that vary from medium short to very long and comprised of a flexible, permeable, elongated supporting roller body with a lateral surface that is capable of gripping fabric; and a detached, elastic, permeable fabric sleeve that safely and securely affixes to the gripping surface of the roller body.