They are used for serving delicious jams or storing preserves, these beautiful jars will add style to any breakfast or dining table. The jar is accompanied by an easy to use metal screw top lid made up of 2 pieces, a replaceable vacuum seal and a metal screw band to secure the seal. Dishwasher safe. Do not pour boiling water directly into your jars/bottles. Avoid use of abrasive sponges. Wash before first use.