Lekue Reusable Flexible Lid Set of 2 85mmECO non plastic stretchable silicone lid suitable for preserving multiple food stuffs, forms a hermetic seal over bowls, tins and other food vessels. Easy clean. Use and reuse time and again. 100% platinum silicone derived from sand. Heat and cold tolerantSilicone1 Year460gNon plastic ECO sustainable siliconeHermeticEasy cleanResusableTolerates heat and cold