Ensure food safety with reliable sealing solutions. Vetri Airtight Seal Mason Jar Lids feature a tight-sealing design that locks in freshness for canning and storage. Crafted from durable steel, these mason jar lids feature a soft sealing material that prevents oxygen and bacteria from entering, providing a dependable barrier against spoilage. Measuring 2.68 inches in diameter, these airtight canning lids maintain freshness, extending shelf life by preventing contamination. Each pack includes lids that are compatible with regular mouth 8, 16, and 32 oz canning jars (sold separately). These lids are essential for preserving seasonal produce and crafting specialty products like homemade jams and condiments. Elevate your food preservation process with these versatile canning accessories. Each order includes 48 Vetri Canning Lids. Canning jars are available and sold separately.