Perfect for lunches, storing food, freezing food and keeping products fresh. We love to use these for freezing fruit and veges (great for freezing fresh fruit to use in smoothies). You can also use them to keep your snacks when out and about. This pack contains 4 sizes of silicone pouches: * 500ml * 1 Litre * 1.5 Litre * 4 Litre These silicone food pouches are fridge safe, freezer safe, microwave safe and dishwasher safe. BPA Free, FDA Approved.