The new Tension Comb from Turbo Tools is an innovative beauty tool that expertly controls even sections of hair allowing you to more effectively apply heat from the dryer or flat iron. It is designed with hinged handle that is spring loaded to open when released. When closed the two ends of the comb meet, as the teeth slot into holes in the opposing end, closing tight and so allowing you to "lock" the section of the hair and apply the necessary tension.