These beautiful Matte Rose Gold finish soap dispenser pumps are on-trend! Rust proof – both the lid and pump are made from 304 stainless steel. Fits any Regular Mouth (2 3/8″ internal diameter) Mason jar. Use them to dispense hand soap, dish soap, lotion, hand sanitizer, or liquid hair care products. Includes one pump and one lid. Just add a jar and soap. The kit comes with the plastic collar that attaches the lid to the pump and 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. If you are using a half gallon jar (most are wide mouth) or using the pump with a taller container, we also have 6 3/4″ tubes (8 3/4″ with the pump). They are made of stainless steel and plastic. The finish is a warm and wildly popular rose gold. The threading is 28/400.