These lids are enameled / painted so they will not rust unless there is a chip and the metal shows through.

The pumps come with the plastic collar that attaches them to the lid and a 4 1/2" intake straw (6 1/2" protrusion into the jar including the part of the pump that sticks into the jar), which is the right length for a quart jar. For a pint jar, cut the tube to fit with a scissors. If you are using a half gallon jar or using the pump with a taller container, we also have 6 3/4" tubes (8 3/4" with the pump) available here.

Be sure to cut the tube short enough that it does not touch the bottom of your jar. If the tube is touching the bottom, the plastic collar will work its way off the bottom much more quickly.