Hair curling rod assembly

A hair curling rod assembly comprising an elongated one-piece hollow rod of rigid thermoplastic material whose diameter gradually increases from its middle toward its outer ends,

• the outer surface of said rod containing a plurality of similar ridges generally parallel to each other running from one end to the other of said rod,
• said rod also containing four rows of cylindrical drain holes running from one end to the other of said rod,
• one end of said hollow rod being closed by an integral flat cylindrical disc having an axial hole in the middle of said disc,
• the other end of said hollow rod having a cylindrical opening therein,
• a hair tress-fastening elastomeric cord passing through said axial hole and the end of said cord inside said rod being enlarged so as to secure said end of the cord within said hollow rod,
• the cylindrical disc enclosing one end of said rod having along its outer rim a plurality of not less than twelve cylindrical grooves equally spaced around the outer rim of said closed end,
• each of said grooves being sized to snugly contain in place and to locate the tress-fastening cord as it is stretched from one end to the other of said rod,
• and a cylindrical plug sized to fit into the cylindrical opening in the rod and having a rod-engaging flange and an axial hole in its center through which an end of the elastomeric cord passes and its end enlarged so as to retain the plug onto the cord.