Pre-Cooler for Acrylic Bongs blue

A useful precooler for milder smoking. Just fill in water, pull the downpipe out of the bong and put it into the precooler, put them together into the acrylic bong and enjoy. It additionally cools the smoke and goes easy on the bong.
Comes with:

precooler
• acrylic precooler
• 1 aluminium downpipe (you need altogether 2 downpipes but you should have one with the bong)
• The bong on the picture is not included.