For frizz-free curly hair: Maintain your natural texture with our volumizing diffuser for incredible results. Protects hair from concentrated heat damage, frizz at knees, and limits your styling time. Patented design: New patented product with lockable key. Understated design in a luxurious gloss black finish. True: Universal for hair dryers with nozzle diameter: 4.3 cm - 6.6 cm. Lightweight and easy to carry, it's perfect for travel. Maximum volume: Over 200,000 vents distribute air evenly for frizz-free curls or waves. This hair dryer accessory dissipates the harsh heat of your hair dryer and distributes air in a gentle and even way. High heat resistance and improved safety: Made of high quality PC material. Good waterproof and fireproof performance. Environmentally friendly. Tasteless.