【High-Quality Glass Jars with Leak proof Lids】Our JYJOJO glass jars are made from high-quality, extra thick glass that is both BPA-free and lead-free. 【Versatile and Convenient Design】With the upgrade airtight lids featuring a silicone seal ring and wide mouth opening, our glass mason meal prep jars are easy to fill and wash. The airtight seal keeps your food fresh and prevents any leaks or spills. 【All-Purpose Storage Solution】 The JYJOJO overnight oatmeal jars are not just limited to storing breakfast essentials. They can also be used to store coffee beans, spices, mixed grains, nuts, candies, crackers, and various snacks that require a dry environment. The crystal clear glass allows you to easily see the contents inside, making it convenient to locate and access your stored items. 【Multi-Purpose Usage and Endless Possibilities】 These versatile glass jars are not only suitable for storing food but also perfect for DIY projects and crafts. Use them to create homemade candles, organize small items, or even as stylish vases. The possibilities are endless with these multi-functional glass jars. 【Considerate Designs】 Fluted design on the lid and flat bottom of the glass jar make it easy to stack and save your storage space. Marker can be used to write the information you need to note on the lid, meanwhile it is erasable and reusable. Perfect for homemade baby food storage.