Fit Most Hair Dryers:Professional hair dryer diffuser size is suitable for all common hair dryers & blowers ( nozzle diameter: D-1.575 Inches to 1.968 Inches)The foldable design makes it flexible to use and easier to put in your handbag or makeup bag,Great for Travel.Quick Drying Time: With increased air flow, the Magic hair dryer Diffuser saves up to 75% in drying and styling time.Make Your Hairstyle: With this hair diffuser, it can help to diffuser the heat and air from the dryer evenly, which will protect the hair from damage of concentrated heat.Adopting high quality silicone, which is high temperature resistant ,non-toxic and without deformation for long term use. If you are not satisfied we will offer you an exchange or refund.