Much more attractive than standard jam jars, each of these four large 945ml glass jars has a pretty pattern design, meaurements up the side & a traditional 2-part screw & banded lid to provide a seal that is both airtight & 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. Traditional 2-part lid to provide a seal that is both airtight & watertight Ideal for home-made jams & preserves Wide openings for easy filling & compacting Good choice for fermenting vegetables & fizzy fermented drinks like Kombucha, Kefir or Ginger Beer Perfect for pickling & preserving fruit & veg Wide mouth is easy for putting your hand in to reach inside Microwave & dishwasher safe. Dimensions: Jar is 17cm high x 9cm diameter, Wide Mouth Opening is 3ins precisely or 7.8cm diameter.