1. Material: The vacuum fresh-keeping box is made of AS + silicone material, which is light in weight, easy to clean, anti-drop and wear-resistant, internal silicone sealing ring, detachable and easy to clean, Anti-penetration, and strong airtightness.2. Air Tight Seal: The special-made fresh-keeping box forms a vacuum state to slow down the deterioration of food and provide the greatest convenience for food preservation. This product can extend the freshness of food by 3-5 times and maintain the original taste and color of the food.3. Versatile: Ideal as meal prep containers, to-go containers, or for keeping liquids or leftover food fresh in the fridge. Suitable for long-term storage of dry goods like coffee, cereal, granulated sugar, rice, pasta, flour, and dog food.4. Easy to Operate: Put the food in the vacuum fresh-keeping box, seal the fresh-keeping box with the lid, and then connect the air pump to the air valve, until the air extraction is complete. Rotate the date scale to the corresponding to record the storage time. When you need to open it, gently flick the air valve with your hand, and you can exhaust it after lifting it up.5. Heat Resistance Range -2°~90°: It can be used for refrigeration and fresh-keeping, and can also be washed and disinfected with hot water. Do not use it in ovens, microwave ovens, or places where the temperature is too high, the high temperature will cause the product to deform.