Thanks to a leak-proof design, the water bottle ensures a strong sealing. And the double-wall vacuum insulation can keep your drinks hot and cold for hours. Characterized by a flip top lid, the vacuum flask is convenient to open. And the wide mouth can provide you with easy filling and cleaning. Made of inner 304 and outer 201 material, it is durable and rustproof. There are 2 sizes for you to choose from. It is suitable for outdoor, cycling, camping, office, etc. Item Name: Vacuum Flask Material: Inner 304, Outer 201 Features: Transparent, Large Capacity, Wide Mouth Capacity: 300ML, 400ML Size Details: Size 400ML: 19cm x 6.5cm/7.48" x 2.56" (Approx.) Size 300ML: 17cm x 6.5cm/6.69" x 2.56" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Vacuum Flask(Others Not Included)