ForJars canning lids will seal in the freshness of your homemade goods. This set contains 100 regular mouth and 100 wide mouth lids, giving you ample supply for all your canning needs. Each lid is safe for water bath, pressure, steam, and vacuum sealing. These rust-proof and BPA-free lids ensure that your food remains safe and delicious. Easily label contents with the designated area for writing dates and contents.