Ergo 33mm Ionic Ceramic Round Brush Size:63mm it would be this one

it would be this one

straight finish

focusing on mid-lengths and ends

and hard-water minerals on hair and scalp

leave five minutes

Ergo 33mm Ionic Ceramic Round Brush Size:63mm it would be this one"ERGO'S ICONIC ROUND BRUSHES COME IN 5 SIZES REVOLUTIONARY DESIGN AND EXCLUSIVE BRISTLE FORMULATION DELIVER A NEW LEVEL OF FASTER AND LONGER LASTING SHINE FOR ALL HAIR TYPES. THE LONGER BARREL & HANDLE MAKE IT EASIER THAN EVER TO REACH EVERY PART OF YOUR STYLE! 20% LONGER BARREL THAN OTHER BRUSHES. EXTRA LONG SILICONE HANDLE FOR TOTAL CONTROL WITH LESS HAND FATIGUE EVEN WITH WET HANDS. SEAMLESS HANDLE DESIGN PREVENTS HAIR FROM SNAGGING. HEAT RESISTANT