For volume, ideal for the crown of the head and medium to long hair. EX Series. Extended Cork Handle. The EX series is the most innovative design in ergonomics in a round brush EVER! Light weight and easy to maneuver. Extra dense reinforced boar for the practitioner of high performance styling. Ibiza Hair mixes natural boar bristle with a unique carbon fiber heat resistant nylon. GripSlip technology. Made in Spain.