Material - Designed with 100% Japanese synthetic heat-resistant fiber. Our messy bun extension blends naturally with your own hair, is comfortable to wear, and looks like real hair. Thick volume is about 55 grams. Adjustable Size - The bun extension uses elastic rubber bands, which are elastic and have a long service life. Our messy bun extension can be rolled up twice in your ponytail bun, and it is not easy to break or slip off for most people. Applicable Occasions - Our messy wavy bun extension is perfect for adding volume and fullness to your bun or ponytail, very comfortable and easy to use, suitable for various occasions, such as parties, dances, shopping, yoga, weddings, daily use, etc. Easy to Use - Our messy wavy bun extension can change your look in seconds, save your time and amplify your beauty, giving you an elegant and decent look in just seconds. 100% Satisfaction - We sincerely promise to provide you with 7x24 customer service. If you have any questions, please contact us and we will do our best to solve them for you.