Fits Most Hair Dryers: Professional Diffuser Attachment Sizes to Fit Various Hair Dryers (Nozzle Diameter: 1.65" to 1.77")Function: Helps distribute the heat and air from the dryer evenly, expand the heating area, avoid heat damage to the hair and maintain natural curls. Professional salon tool for finely curly and frizzy hair that dries and adds volume without frizz. So you can achieve the perfect hairstyle faster and better.Folding Structure: Easier to put in a handbag or drawer, suitable for travel or home. A lightweight silicone hair dryer diffuser for you everywhere.Heart-warming: Removable filter allows the dryer to directly touch the hair. Essential oils are designed to give hair a natural scent.advantageProfessional diffuser attachment sizes for all common hair dryers (nozzle diameter: D-1.565" to 1.968").FOLDING CONSTRUCTION - Flexible, lightweight and portable, ensuring easier to put in a handbag or drawer, suitable for travel or home.DURABLE AND HIGH TEMPERATURE - It's made of sturdy silicone that's built to last, ensuring hair can be styled in temperatures up to 450F (230C).A sponge or cotton ball soaked in essential oils can be added to the middle of your hair dryer diffuser to give your hair a natural scent.Expand the heating area, avoid heat damage to the hair, maintain natural curls, and achieve the perfect hairstyle faster and easier. The removable filter is easy to remove and clean.usage:Wash and condition hair.Add an essential oil-soaked sponge or cotton ball to the middle of your hair dryer diffuser.Attach the hair diffuser to the blow dryer.Use a diffuser to lightly dry your scalp and toss with hair until styling is complete.