Magnetic Lid Lifter:The magnetic tip makes lifting your canning lids easy,keep your canning lids from dirt, so your food is safe; By not having to touch the lid, you ensure that the dirt will not sneak into your food, one of the simplest tools to use while canning; Canning can be complicated, but this tool helps make the process more frustration-free.Bubble Popper Function:Make sure that air bubbles have not been trapped inside the jar, run a bubble popper around the edges of the jar, gently shifting the food, so that any trapped air is released; After the air bubbles have been removed, more liquid may need to be added to the jar to ensure proper head space.Canning Measurer:Convenient measure marks on one end of our bubble popper for measuring the head space in your jars to avoid overfilling.Great Canning Tool:Our bubble popper and magnetic lid lifter are home necessary canning tools, can be work as canning bubbles, canning food measurer, potato masher and jar lid lifter, they are suitable for canning food making.Package Include:The package contains 2 pieces canning bubble popper and 2 pieces Magnetic Lid Lifter Canning Lid Lifter Kit in red color.