8oz Jelly Jar with a Two-piece Lid. These half pint regular mouth canning jars are an old favorite with canners and mason jar meal fanatics. Because they do not have shoulders, they are easy to fill, easy to empty and can be used for freezing in addition to hot fill canning, waterbath canning and pressure canning. Scroll down to the From the Blog section to see an article on Freezing in Canning Jars. MADE in the USA.