No gaps - no germs. Food stays fresh for longer and is also odourless and hygienically stored. Dishwasher safe. Clips open and close without breaking off. Suitable for freezing and microwaving. Integrated measuring scale. Can be stacked inside each other to save space. Can be stacked on top of each other thanks to the stacking edge on the lid. BPA free. Voluntary compliance with the Babycare standard - the highest standard for pacifiers and baby bottles. Made from certified raw materials (Freshness Special Plastic F+).