The Ball Fermentation Lids & Springs set includes 2 stainless steel springs and 2 wide mouth lids, perfect for canning and preserving your favorite homemade jams, pickles, and other fermented goods. These silver-colored lids are reusable, dishwasher safe, and made in the United States by the trusted brand Ball. The adjustable design ensures a secure fit for your 8 oz jars, making it easy to ferment and store your delicious creations.