Ball 81210 Elite Design Series Regular Mouth 8-oz Jam Jars 4 Pack. Canners and crafters alike love the unique design of the new Ball Collection Elite Design Series Jam Jar. The specially shaped jar is decorated with fruit embellishments. The special look is perfect for canning and gifting. The Jam Jar has a unique, round shape that is safe for canning and is made in USA. Includes four 8 oz. jars with lids.