1. Light enough to carry anywhere, such as picnic, company, school, camping, hiking, road-trips, travel, etc. 2. Eco-friendly 100% BFA free, America FDA and Europe LFGB food-grade silicone material, non-toxic and safe for use. 3. Easy and convenient for storage, will not deform in oven, microwave, fridge and dishwasher. 4. The heat-resistance temperature range is -40~230℃. 5. Foldable, compact and portable design - easy to carry and save space. 6. Flexible lock catch sealing design for safe use. Folded to use as a shallow bowl, expanded to use as a deep bowl.