Clear square glass jars paired with black metal lug caps can easily showcase your products, while also providing durable and secure packaging. The square glass jars include sturdy bases, wide opening, and straight sides for labeling. The black metal lug caps have plastisol liners that create a tamper evident, hermetic seal for assisting in preserving the products within the square glass jars. Be sure to test these square glass jars for products that could include jams, nut spreads, and honey.