The Wahl Universal Diffuser is a universal hair dryer diffuser which can be used on most brands of hair dryer*. ONE SIZE FITS ALL The unique silicone grip allows the Universal Diffuser to be attached to most brands of dryer*. ADJUSTABLE AIR FLOW Provides an even air distribution to create perfectly formed, frizz free curls and waves. DEFINES & ENHANCES CURLS The contoured hard fingers help lift and seperate the hair as you dry, defining curls and waves as you style. REDUCES FRIZZ Provides and even airflow rhat helps reduce the risk of frizzy and fluffy curls. HEAT RESISTANT Strong and durable, the heat resistant material ensures consistent and even heat distribution when drying. *With the exception of the dryers that have bespoke designs for their attachments.