Item Type: Hair Dryer Diffuser Material: PC Inner Diameter: Approx. 7cm or 2.8in Outer Diameter: Approx. 11cm or 4.3in Bottom: Approx. 16.5cm Height: Approx. 12.5cm Characteristics: Increased caliber, express heat dissipation, air volume adjustment, 3D styling, drying curls, good compatibility Product Use: Home, hairdressers 1,Finger Hole: The diffuser has finger holes that allow air to flow evenly around your curls, reducing damage and creating soft and good looking waves. 2,Easy To Install: Hair diffuser can effortlessly create curls and volume without damaging your hair, which gives you a better hair style and you will look beautiful. 3,Suitable For Salon: Universal hair dryer diffuser is compatible with most hair dryers with a nozzle diameter of 2.17 inches, perfect for home and salon use. 4,Reduces Frizz: Universal hair diffuser attachment saves time and reduces frizz, creating perfect curls quickly and effectively, perfect for curly and wavy hair. 5,PC: Constructed with durable ABS material, curly hair diffuser is able to withstand daily wear and tear for long lasting use, and it has a long service life.Please allow 1 3cm error due to manual measurement. Thanks for your understanding.1 x Hair Dryer Diffuser Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. YJL official store