Olivia Garden HeatPRO Thermal Brush Box Set HPBOX01Olivia Garden HeatPRO Thermal Brush Box Set (3pc) Box Set Includes: 1 1 4" (HP 32), 1 3 4" (HP 42), 2 1 8" (HP 52) The first extreme high heat resistant round thermal brush with exclusive Nylgard bristles, a vented cap design, & high quality ceramic barrel to create long lasting volume, waves or curls Unmatched heat resistance up to 550F (290C), Copper Ceramic Tourmaline Ionic Technologies, Ergonomic handle Use with a hair dryer on wet or dry hair