The NESCO 6-Piece Canning Kit makes canning simpler and safer. The wide-mouth funnel easily sits on a jar to aid in filling. The debubbler is used to release trapped air in jars before canning and the magnetic lid lifter helps to lift lids out of hot water. The jar wrench, jar lifter and tongs will help you open, close, and move jars. The jar lifter has rubber attached to the bottom for extra grip.