Airtight and Fresh - Designed with a high-quality silicone sealing ring, these lids create an airtight closure that keeps food, snacks, spices, and leftovers fresher for longer. Eco-Friendly and Safe - Made from 100% natural bamboo, free of and PVC, these reusable jar lids are a sustainable alternative to plastic lids and safe for everyday use. Smooth and Easy to Clean - Carefully polished with a food-grade varnish for a smooth finish. Stain-, burr-free, and simple to clean. Dishwasher safe, freezer safe, and microwave safe. Pack - Includes 12 reusable bamboo lids, compatible with a wide variety of glass jars. A practical, sustainable, and stylish solution for kitchen storage and organization.