Olivia Garden NanoThermic Ceramic + Ion Square Shaper Thermal Hair Brush - Not Electrical - Professional Blowout Brush for Normal to Thick Hair

Q: What works and what doesn't with the square shape of this brush?

The square shape is the only one I like since I can have more styling options with it. It offers a slight wave or additional curl as you blow dry, depending on how tight you curl the brush around the hair. You can also dry the hair straight by pulling the hair out straight as you dry and not "curl" the brush tight. So the looser the turn, the straighter the hair.