:There are many colors to choose from, black, navy blue, purple, red, blue zircon. No matter what clothes you wear, you can choose beautiful colors. :The size is adjustable. Under normal conditions, the diameter is 13 inches, suitable for people with a head circumference 19-24 inches. :The double-layer fabric design can wrap the hair well, and after using the hair mask, it will not stain the sheets when sleeping. :The soft silk material is used to fit the skin, there will be no inappropriate places, and the texture is soft enough to make it comfortable to use anyway. :It can be used to wrap the hair while sleeping so that it will not be messy, and it can also protect the hair from getting wet when taking a bath.