Note: Please make sure that the blow dryer you are going to match with meets the following requirements: The nozzle of blow dryer is orbicular round shape and the diameter of the nozzle is between 1.575-1.968 inches (4-5cm) The dryer cylinder tapers towards the end of nozzle And we've noted dimensions requirements on the pictures for reference Why do you chose KingKam hair diffuser attachment 1.This Professional silicone diffuser attachment for hair dryer size fits nozzle diameter: D-1.575Inch to 1.968 Inch 2.Quick Drying & Perfect Hairstyle: This hair diffuser saves up to 75% drying time. And it diffuses the heat and air from the dryer evenly to protect the hair from damage of concentrated heat 3.Adding 1 Travel Waterproof Bag: This hair dryer diffuser attachment can easily collapse or expand to take it with you while traveling plus we include a convenient drawstring waterproof travel bag 4.Adding 1 Hair Scalp Massager Shampoo Brush: Soft thick silicone bristles stimulate blood flow to the scalp which can deep clean and exfoliate scalp. Relax scalp muscles and reduce stress. No worry about your long nails or sensitive scalp Use suggestiongs: 1. Wash and conditioner your hair, dry with towel first 2. Add anti-frizz prodcut or serum 3. Attach the diffuser to the dryer nozzle 4. Place a section of your hair into the bowl of diffuser 5.Move the diffuser gently over the scalp while drying. Hold it until your hair roots and tips are dry 6. Pull out after cooling