For generations our family has been using the Mason Jar. From canning garden produce to 50 plus years of apple butter, we have come to appreciate its basic use. However, recently we developed a glass top that works with the WIDE MOUTH Mason Jar. This is truly one of a kind product that can be used for many purposes. From canning, storage devices and even candles, you will want to open wide and let the WIDEMOUTH TOPPER start you on your creative journey.