- Universal HAMKU diffuser designed for hair dryers with nozzles from 4 to 4.8 cm. - Ideal for defining curls and waves, eliminating frizz and adding volume. - Even air distribution to maintain the natural shape of the hair without frizz. - Made of PC material, water and fire resistant, durable and safe. - Portable and lightweight design that makes it easy to control the airflow during drying. - Reduces styling time and protects hair from concentrated heat. - Recommended for all hair types, especially curly and straight hair. - No adapter needed, easy to install and use on most dryers on the market.