Made from high quality PC material. Good resistance to water and fire. Durable for maximum temperature for 150°C or 302?. Suggested to always using LOW/MEDIUM HEAT on hair dryer when diffusing, and cool down the diffuser for every 5 minutes, not only to protect the dry tools but also to protect your hair scalp. This hair drying diffuser works good for any hair types like natural curly hair and straight hair. MAXUMUM VOLUME: Over 200 air apertures, distributes air evenly to maintain curl or waves without frizz. This hair dryer attachment is diffusing the harsh heat from the dryer and disperse air with gentle evenness. REAL UNIVERSAL: Suitable for hair dryers with nozzle diameter: 1.7 inches - 2.6 inches. Light weight and easy carry, perfect for travel. PATENTED DESIGN: New patented product with lockable buttons. Streamline design, luxury shiny black finishing. PERFECT CURLS WITHOUT FRIZZ: Maintain your natural texture with our volumizing diffuser that delivers incredible results. Protect the hair from damage of concentrated heat, blow away the frizz, and slash your time for styling.