This Hair Dryer Diffuser is suitable for 1.77in dryer nozzle. It can diffuse the harsh heat from hair dryer to dry your hair much evenly. Feature: Compatibility It is suitable for hair dryer with nozzle of 1.77in (4.5cm) diameter. Easy to Use Just plug the diffuser onto the nozzle of hair dryer, then start to use. Why You Need It It is an additional hair dryer attachment, diffusing the harsh heat from hair dryer to dry your hair much evenly. Make Hair Care Easier Make it easier to handle with your curly hair. ABS Material It owns great rigidity, no easy to be broken. Specification: Material: ABS Color: Black Item size: 14 14 9.3cm/ 5.51 5.51 3.66in Item weight: 116.9g/ 4.12oz Suitable for: Hair dryer with nozzle within 1.77in (4.5cm) Packing list: 1 Hair Dryer Diffuser