Food Fresh Eco-friendly Set of 4 Silicone Reusable Bowl Covers for Storage in the Freezer, Baking in the Microwave and Oven Made of 100% food grade silicone, non-stick, strong, stretchy and flexible large and small bowls Eco-friendly and reusable for special serving bowls or storage containers without a lid Fits snugly on glass, ceramic and stainless steel, and some hard plastics on dry surfaces. Cleanup is easy; roll them up for storage for reuse again and again. Bake in the oven for serving to family and friends, then store in the fridge or freezer