Versatile set of 3 (250 ml | 500 ml | 1000 ml), perfect for meal prep, fridge, freezer and pantry storage, snacks and meals on the go. 100% platinum food-grade silicone. Durable, leakproof, and safe for the microwave, oven, sous vide, freezer and dishwasher (-40 °C to 250 °C). The wide-mouth design makes it easy to fill, pour, and enjoy directly from the bag.