4 size oval shape silicone food container 1.100% food grade silicone; 2.flexible,non-stick,impermeable; ... 3.durable,reuseable 4 size oval shape silicone food container 1. material : 100% food grade silicone with high quality ,meeting ... to +230 centigrade;4. safe use for the microwave oven,roaster,refrigerator,dishwasher ;5. eco-friendly ,tasteless, non-toxic, unbreakable and ...