Avanti Universal Diffuser fits virtually all dryers! Its coiled steel and elastic bands assure you a good fit. The diffuser has long fingers lift and separate your hair for more volume and curls. It is easy to use and distributes air evenly to maintain curl without frizz. 69AVA-S Diffuser is perfect for permed or naturally wavy hair. It has the same features as model 69-AVAN, but with a smaller diffusing surface.