1. High quality nylon horsehair. 2. Highest quality material, high density bristle, high quality synthetic fiber hair. 3. Little smell is normal, please wash thoroughly and allow the brushes to air-dry before using. 4. Comes with a tin, professinal, portable and convenient for daily makeup. 5. This 7 pieces set includes all the brushes you'll ever need to create perfectly polished makeup styles. 6. Perfect for professional salons or personal use!