Extra Long Barrel makes blowdrying long hair and medium length hair faster. The Ceramic Barrel protects your hair from heat damage while gently styling your hair. The Bristles are infused with Tourmaline which closes the cuticle of the hair and makes hair shine. The handle is ergonomically designe for comfort. The Removable Pick is for seperating and lifting up sections of hair while blowing hair dry. EXTRA LONG round brushes make blowing your hair so much EASIER and FASTER! The barrel of brush is coated with CERAMIC for even heat distribution and the nylon bristles are INFUSED with TOURMALINE, creating NEGATIVE IONS, resulting in LESS FRIZZ and SMOOTHER and SHINIER hair. The SMOOTH-AIR BRUSH feels good in your hand because it was ERGONOMICALLY designed. The SMOOTH-AIR brush is great for the PROFESSIONAL HAIRDRESSERS and EVERYONE that wants a HIGH QUALITY ROUND BRUSH. The SMOOTH-AIR brushes are LIGHT WEIGHT and 20% to 40% longer than other round brushes, so your BLOWOUT will be faster because you can put more hair on the brush and the ERGONOMIC handle feels good in your hand, resulting in a more comfortable blow-dry. The SMOOTH-AIR round brushes are 13" inches long and come in 5 different diameter barrel widths; 65mm/3.5"inches, 53mm/3"inches, 45mm/2.5"inches, 32mm/2"inches, 25mm/1 5/8"inches