Package: It is composed of 12 empty bottles with white plastic roller, each bottle has a volume of 50ml, and each bottle has a smooth mixing ball. White design is simple but classic Function: The design of rolling ball can make you not easy to leak out when using, and also make the products more comfortable. The rolling ball is also very smooth, and there will be no feeling of stuck in the process of using. Applications: Our bottle can be applied to hold skin care products, essential oil, make-up water, make-up remover and many other liquids. Its small in size, and its a good choice for you to go out for work, short trip and so on. How to use: When using, just open the cover, turn down the rolling ball, pour in the liquid, then tighten the rolling ball, put the rolling ball close to the skin area you want to use, and slide slowly. Reusable: Our bottles can be reused. After they are applied again, they just need to be clean. Its a good gift for girls. Its more convenient for them to carry their own liquid cosmetics.