I purchased this new, but second hand, and used it once, but was not skilled enough at hairstyling. It seems to function as intended. If the second hand nature bothers you, do not purchase. Does not include thermal sleeve. The heated round brush combines the ease of brushing with the efficiency of a styling tool, making it ideal for creating volume, waves, or a straight look. Tailor the heat to your hair type with adjustable temperature settings. Tourmaline Ceramic technology delivers even heat distribution, producing negative ions and far-infrared, which reduce static electricity for that perfect style. Leaves hair smooth, silky, and with an exceptional shine. Comes from a smoke free pet free home.