【 One-handed operation】: Open with one button. 【 High quality】: Excellent heat preservation and firm sealing. 【 Food grade straws】: Easy to drink with food grade straws. 【 500ml capacity】: With lifting ring, portable and mini style, very convenient to carry. 【 Application】: Suitable for travel, outdoor, office. A lot of travel goods. Give gifts to students, friends and yourself.