Hot Tools 24K Gold Spring Curling Irons are the beauty industry standard in curling irons. The complete line of irons is available in various sizes, for all styling options. The high heats and even heat distribution create long-lasting curls and waves leaving hair looking smooth and glossy. The irons are equipped with patented Pulse Technology® for Gets Hot... Stays Hot® performance, for fast heat up and instant heat recovery - up to 430° F. Other professional features include variable heat settings, rheostat control dial for all hair types.