Homemade cookies, a crisp salad or ground coffee beans, with these practical and stackable food containers, you can easily keep it all fresh and tasty! Thanks to the user-friendly vacuum pump, your food is sealed airtight and leak-proof for maximum freshness and optimal preservation of flavors and aromas. This stackable food storage system is dishwasher safe and comes complete with the vacuum pump and 3 containers (4.5x4.5x3.25 0.63qt, 4.5x4.5x6.5 1.4qt, and 4.5x4.5x9.75 2.1qt). Material: Polypropylene, silicone ring dimension: 4.5x4.5x9.75 Use & Care Instruction: dishwasher safe Warranty: 1 Year Limited Warranty Product Id: 3950128