The hair care spa cap is safe and convenient to use, it is indispensable for nursing your hair at home.it is a flame-retardant electronic temperature control heating cup.the inner embedded plastic film is waterproof and anti-electricity, and it's detachable and convenient to be washed.two level of temperature controlling, you can adjust to your favorite temperature.flame-retardant products is more secure.it is indispensable tool for nursing your hair at home.