Using the aluminum foil hair cap is simple and convenient. After applying your favorite hair treatments, place the cap over your hair and let the self-heating properties work their charm. The cap's double-layer waterproof construction ensures that no water seeps in, making it suitable for use during a bath or shower. Features -Color:Assorted Color -Material:Tinfoil, cloth -Size:30.50X30.50X8.50cm/11.99X11.99X3.34in -High temperature shield: protect your hair from the damaging effects of high temperatures with this effective tin foil hair cap -Convenient self heating: the self heating design eliminates the need for electrical devices, offering a easy hair care solution -Waterproof and dual layer: this cap combines the features of a waterproof bath deeply conditioning heat cap for a versatile hair care experience -Static reduction: designed to minimize static, this cap keeps your long hair smooth and keep from frizz -Suitable for long hair: specifically designed for women with long hair, this cap provides and protection Package list: 2 x hair caps