Sealed fresh-keeping storage tank, lock fresh, stacked nutritious moisture-proof and fresh-locked, prolong the "freshness" of food, capped design, multi-button sealing, dustproof and moisture-proof, effectively lock fresh with the lid sticking the sealing ring, tightly sealed without leaking a drop of water food-grade PS material, smooth and shiny surface, good stability, not easy to break thickened material, transparent as glass, built-in items at a glance