Hot tools
Heated styling tools such as hairdryers, flat irons, curling tongs, hot combs and hot rollers.
Also: heat styling
Hot tools is the stylist's name for heated styling tools: hairdryers, flat irons, curling tongs and wands, hot rollers, crimpers and pressing combs. Heat lets the hair be bent or straightened by temporarily changing its weaker bonds, and the shape lasts until the hair gets wet. Because repeated high heat can dry and weaken hair, stylists keep temperatures moderate, work on clean, dry hair and avoid going over the same section many times.