Material and hair length: 29.5 inches (from forehead to back hair). Our manaquine hair is made of synthetic fibers, making it super smooth and of superior quality. They are also much cheaper and multifunctional than human hair: this mannequin hair exercise head can be used by hairdressers, stylists, beauticians, barbershops, hairdressers, hair salons sand beauty school students asan educational supplies, multifunctional for girls or boys: this hairstyling head is suitable for washing, cutting, braiding, straightening, styling, DIY hair, etc., but can not dye, bleach and makeup. Note: If you want to flatten/curl, it is recommended that the temperature does not exceed 150 degrees and no more than 15 seconds at a time for easy cleaning: trained model heads can be washed with mild shampoo very easy to clean and use, but do not throw into the washing machine and dryer