Matte Black Soap Pump Lid Kit for Mason Jars

Comes with a 4 1/2" tube (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. Cut the tube so that it does not touch the bottom of your jar. 
To assemble, listed from top to bottom: Pump, lid, plastic "nut" screws in under lid, foam liner covers inner lid and nut, then plastic tube. Cut tube to correct length, fill jar with soap, and screw onto jar.