The jar sealer works with any FoodSaver vacuum sealing system (machine not included). Simply connect one end of the jar sealer to the machine's accessory port and the white, round-shaped end to the top of a lidded Mason jar, so that it fits securely over the screwed-on lid.

With the push of a button, the system quickly extracts all the air from inside the jar, pulling it out through the flexible tubing to form an air-tight seal.