Use these screw bands to tighten the seal while the preserves are hot. Once the preserves are cold, and the lid has formed a tight seal on the jar you can unscrew the bands and store them in a dry place for next season.
You can reuse them year after year to screw down the seals on your jars while they are cooling. These green screw bands fit the newer Agee Utility jars with the thin lip, tall and short or pint and quart if you still work in those measurements.
If you have the old Agee Special preserving jars with the thick lip at the top, you'll need the Agee Gold screw bands.
There are 12 screw bands in each box. You can also buy the seals to go with them - seals.