The Wahl Universal Diffuser is a universal hair dryer diffuser which can be used on most brands of hair dryer*. The Max barrel size is 52mm. 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 separate the hair as you dry, defining curls and waves as you style. REDUCES FRIZZ Provides an even airflow that 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.  Does not fit the Wahl Style Collection Dryer. Defines and enhances curls One size fits all Provides an even air distribution to create perfectly formed, frizz free curls and waves Contoured hard fingers help lift and separate the hair Heat resistant material ensures consistent and even heat distribution when drying DIMENSIONS D: 15,5 cm W: 15,5 cm H: 14cm