Glass Jars with Bamboo Lids, Glass Food Storage Containers Set for Home Kitchen Pasta, Cereal, Oatmeal, Beans, Rice, Nuts, Coffee, 9 Pack of 16oz Product Feature and Maintenance: 1.Material: High borosilicate glass, Bamboo lid, Silicone ring 2.Glass temperature is up to 300F. 3.Glass is dishwasher, microwave and freezer safe. 4.Do not use direct on fire or heat source, such as a broiler or stovetop. 5.Bamboo lid is plastic free, BPA free, Eco-friendly and Recyclable. 6.Lid is not recommended for use in dishwasher, oven or microwave. 7.Do not soak lid in the water, wash lid with wet cloth by hand and air dry after cleaning. Apply olive oil on the lid to protect bamboo finish.