Glass paragon jars are popular for their versatility. Featuring wide openings and slender bodies, these jars are easy to fill while optimizing shelf space. Paragon jars are often used for jams, sauces, herbs and spices. These glass paragon jars feature a continuous thread (CT) finish. A CT finish has a continuous single spiral around the neck of the container. Jars with a CT finish can be capped with a wide variety of screw top closures to create your custom product. These jars are not compatible with lug caps.