Take a step back in time with the Ball Aqua Vintage Glass Mason Jars. Near the turn of the century, the colour was unexpectedly created when the minerals in the sand used to make the glass jars mixed to form a gorgeous blue colour. These beautiful aqua jars became popular for preserving and storing jams, jellies, and other recipes. You can replicate that experience with these collector\'s edition mason jars with the added assurance of SureTight® lids, which will keep your preserves fresh for up to 18 months. 473ml/ 1-pint/16-oz. 4 blue vintage-style glass jars with Regular Mouths to organise your kitchen, pantry or bathroom storage For home-made ferments like sauerkraut, pickles, kimchi and preserves like marmalade and jams and sauces. Make your kitchen plastic free and store all your loose dried goods such as rice, pulses, grains and pasta in these pretty collectible jars With 2-part airtight sealed metal lid to keep your food fresh for up to 18 months Ideal for crafting, bathroom organisation, and garden lighting decoration ideas Microwave and dishwasher safe excluding metal lids. Lids and bands are not microwave safe. The lids should be washed in soapy water and dried to avoid rusting. Not suitable for Freezer.