Ball 69058 Pint-Size Heart Keepsake Jars 4-Pack. Keepsake jar has an embossed Sweetheart design. Safe for canning. Add a creative and festive touch to any creation or gift, home-canned foods, storage, crafts, decor, and more. SureTight lid helps keep foods canned up to 18 months. BPA free jars, lids, and bands. Regular mouth pint.