1. It is suitable for hair dryers with a nozzle diameter of 1.5 - 2.67 inches. It can be adapted to over 99.9% of hair dryers with different designs in the market. 2. All hair types are very suitable for untangling knots, especially curly hair loves this method. This hair dryer diffuser has a larger and deeper bowl, which can better catch the hair and make your curly hair look great. 3. This hair dryer attachment can gently and evenly disperse the air, which helps prevent hair from being damaged by concentrated heat. The oversized design can speed up the drying process of the hair dryer - no more hand cramps after drying your hair! Different from other diffusers with flat and shallow bowls, our 360 - degree airflow diffuser can evenly and gently disperse the hair to increase volume and eliminate frizz. 4. This hair dryer attachment is made of heat - resistant and waterproof materials for hair dryers. It is made of durable ABS material, which is environmentally friendly, with a modern design and a luxurious shiny black finish. 5. Rotate the diffuser to adjust it in place, put the hair dryer into it and press the button on the side, then it will hug the hair dryer and fix it in place. 6. Product Preparation Are you troubled by curly hair and looking for a diffuser suitable for your hair dryer? Our diffuser attachment's universal connector is compatible with over 99% of hair dryers with different designs in the market. You can use this universal diffuser for hair dryers at home and in hotels. The applicable nozzle diameter of the hair dryer diffuser is 1.5 - 2.6 inches (3.8 - 6.8 cm). Make sure the diameter of your hair dryer barrel is within the appropriate range.