<http://schema.org/description>
"In contrast to ordinary down-tubes, the end of a G-Spot - Downtube/Diffuser's tube is sealed but pierced with many small holes. This allows for distribution of the smoke as it exits the end of the tube in many small bubbles.   The G-Spot - Downtube/Diffuser option is suited to anyone who appreciates a much smoother smoke than conventional down-tubes produce."^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.everyonedoesit.co.uk/g-spot-downtube-diffuser-14-5.html>