TYMO Ring Hair Straightening Brush - HC 100 - Black I've used it once and it's not for me with my very fine, thin hair - it just slides thru the grooves. It's been disinfected with isopropyl alcohol and is in perfect, brand new like, condition. - Patented 3D heating teeth help straighten from the root of the hair for greater volume - Five temperature options for different hair types (266℉-410℉) - PTC heating technology delivers even heat, reducing heat damage - Fast 60 second heat up Innovative anti-scald design to protect scalp and hands - 30-minute auto-off - 360° swivel power cord Accessories include a carrying bag, heat resistant glove, detangling brush.