This professional diffuser attachment is specifically designed for use with select Babyliss Pro hair dryer models (like the 6300E, 6400E, 6500E, 6600E, 6700E series). It is engineered to evenly distribute airflow, minimizing frizz and maximizing volume, especially for curly or wavy hair types. Utilizing this accessory helps define curls while ensuring gentle, even drying for beautiful, natural texture.