Much more attractive than standard jam jars, each of these four large 945ml glass jars has a pretty pattern design, meaurements up the side and a traditional 2-part screw and banded lid to provide a seal that is both airtight and watertight. Made by American firm Ball Mason, who have been making high quality glass preserving jars for over 130 years, the decorative look of this set of six gives them a vintage feel.This is an Extra Choice product. Please see the Extra Choice information within customer services for more details.