Sunshine Mason Co. Wide Mouth Mason Jar Plastic Storage Caps 6 Pieces, White 6 pieces, 2.75 (70mm) inches size, wide mouth caps, white Fits wide mouth mason jars such as Ball and Kerr For refrigerating, freezing or storage. Helps keep preserved foods fresh BPA free, dishwasher safe top rack only Great for storing leftovers, fresh sauces or juice