Sturdy, durable and flexible, the collapsible silicone bowl is perfect for carrying water and eating at the campsite. 1. They are BPA free and dishwasher and microwave safe. 2. They are collapsible. You can hang up the bowl according by the Hollow handle. which will not occupy your more space. 3. Anti-silp, The non-slip design at the bottom prevents the bowl from falling down. 4. Anti-deformation, the inside of the edge is reinforced with steel rings, it will not be deformed when used, and the food will not be poured out.