Provided is a method and system for the electronic distribution of product redemption coupons to remote personal computers located at users’ homes. In addition, the heating system employed for transferring heat to the hair curlerroller is also constructed in a unique manner that optimizes heat transfer, while also being constructed efficiently and inexpensively. The adjustment assembly allows independent vertical adjustment of hanger bars, fixture frame and aperture ring for various installation variables. By using the remaining part of the layer having a light-transmitting property or the remaining part of the light absorbing layer as a mask and etching the first layer, the first layer can be processed into a desired shape. Preferably, the transport format selection device also generates physical transmission attributes such as modulation and coding rate, number of subframes per transmission time interval, duration of TTI, transmission power and hybrid automatic repeat request parameters.