1. Lightweight and compact, easy to carry
2. Stackable, space-saving, convenient storage
3. Safety lock to prevent water seepage caused by accidental opening of the lid
4. One key to pop the lid, convenient and fast
5. Direct straw drinking, clean and hygienic
6. Safe material, large capacity
7. Material: PC
8. Capacity: small about 500ml, medium about 900ml, large about 2000ml
9. Size: small size about 20.5 x 4cm, medium size about 25 x 6.5cm, large size about 29.5 x 11cm