We have prepared three types with different capacities. They are compact and portable. They can be washed and reused. The inside is designed to be difficult to see through. They are designed to be easy to fill with water. They can be put in a bag and used in various situations such as on trips or business trips. [Product Specifications] Size: 220ml (approx. 18 x 8.5cm), 160ml (approx. 15.5 x 7cm), 89ml (approx. 13.5 x 6cm)