... Round hair brush Thermal hair brush Aluminum barrel with ceramic coating:Heats up faster and retains heat longer,better ... blow-dryer to increase the benefits of the Ceramic Technology Vent hole design,heat distribution Ionic Nylon ... : Size:5size:19mm,25mm,32mm,45mm,53mmHandle materialCeramic coating barrel and rubber handleBrush materialIonic Nylon bristleTypeRound,ionic,thermalFeatureHeats ...