The 250 ml, hexagonal shape glass jars of 63 mm Lug Neck are well suited for packing spices, honey, dry fruits, candies and chocolates, desserts, etc. These glass jars are 100% food grade certifed, FSSC 22,000 certified, flint (clear), 100% toxic free and lead free, microwave and dishwasher safe, and easy to wash and clean.