1.7 Inch

【Nano Ceramic Ionic Technology】 Round hair brush surface of barrel with ceramic coating will effectively neutralizes the positive ions in hair by producing negative ions when heated, the cuticle is sealed, which can reduce the frizz and static when blow drying your hair and make the hair softer.
【With Boar Bristles】Human scalp produces a kind of sebum oil, boars bristles brush help to spread the sebum produced by the human scalp and lubricate each hair strand, Increase hair shine & volume! While the soft nylon bristles can protect and massage the scalp to prevent pain and good for detangling！
【Honeycomb Vent Design】Honeycomb vent design can speed up air flow and the ceramic barrel round brush retains heat well but provides a gentle and even amount that helps the styling and drying process, shorten the time your hair exposed to heat. The 1.7 inch barrel (2.9 Inch including bristles), best for Blow-drying, Straightening, Adding Loose Curls or Waves for Hair AT or PAST Shoulders.