Features: 1. This automatic vacuum storage tank is made of food-grade material, which can store your food, such as coffee beans, snacks, cereals, etc., without air contamination. The vacuum motor pulls the air out and keeps it completely sealed, preventing air, moisture and other odors from seeping in, making the food fresher and longer lasting. 2. The operation of this storage tank is very simple, put the food into the container, close the lid, connect the rechargeable vacuum pump, then the air can be pumped, and stop after vacuum, it is very convenient to use. 3. The three sets of storage tanks are 1L, 1.5L and 2L for different needs, each with a cover and a universal vacuum pump. Storage tanks can be washed directly or in the dishwasher, LIDS need to be washed by hand, vacuum pumps can only be wiped with dry cloth. Cleaning is simple. 4. This storage tank is ideal for storing a wide range of foods, ideal for storing a wide range of dry and baked goods such as flour, sugar, rice, cereals, crisps, oatmeal, nuts, legumes, snacks, pasta, coffee, tea, etc. Reusable storage bags are ideal for frozen meat, fish, fruits and vegetables. 5. This food storage kit includes 3 vacuum storage tanks in large size :5.3 "x8.3" 2L(70 oz), medium size :5.3 "x6.7" 1.5l (53 oz), and small size :5.3 "x5.6" 1L(35 oz). Suitable for storing wet and dry food to meet daily needs. Specifications: Material: ABS Color: Transparent Capacity: 1L & 1.5L & 2L Functiom: Food Storage Pressure: 20Kpa10% Sucking Power: -40Kpa Number of Pieces: 3 Noise: 55db Auto Reseal: 5% Reseal: 2sec Working Time (Empty): 40s /55s / 75s10% Built-in Battery: 3.7V 800mAh Lithium Battery Package Size: 29.5 * 15 * 15cm / 11.6 * 5.9 * 5.9in Package Weight: 1022g / 2.25lb Note: Please read the product manual carefully before use. Package List: 3 * Vacuum Tank 3 * Cover 1 * Vacuum Pump