Not universal - Widely compatible: The hair diffuser has a fixed diameter of 5 cm. Suitable for hair dryers with an outer diameter of 4.3-5.3 cm. (Note: Measure the diameter of the hair dryer connection.) High-quality attachment: This high-quality hair dryer diffuser attachment is made of durable materials. It is easy to attach to most standard hair dryers and ensures a secure fit for hassle-free styling. Enhanced drying experience: Thanks to its unique design, the diffuser ensures a gentle and efficient drying experience. It speeds up the drying process and minimizes heat damage to your valuable curls. Enhanced volume and curl definition: With our diffuser for curly hair, you can add volume to your curls, making them look bouncier and fuller. Each curl becomes well-defined, for a salon-like finish at home. EASY INSTALLATION: The simple click system allows for quick attachment and removal from your hair dryer without additional tools.