Headband and wrist band stop water from wetting your fringe and sleeves. It is elastic so it won't fall from your head easily. And it has high elasticity. Washing face, applying facial cloth or taking a shower will unavoidably wet our hair like bang, which is so annoying and troublesome so we need this headband to prevent that from happening. It is constructed of coral fleece material. The diameter of this product is 18cm. It is suitable for washing face, applying facial cloth or taking a shower. Item Name: Hair Band Wrist Band Material: Coral Fleece Style: Sweet Gender: Women Size S: Wrist Band Size L: Hair Band Features: High Elasticity, Portable, Practical Size Details: Diameter: 18cm/7.09"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: Size S: 1 x Wrist Band or Size L: 1 x Hair Band