Well the secret sauce behind this pipe is its ability to deliver a smooth hit through the controlled carburetor inside. The materials it's made out of and its design really make it the total package in a device because it's an extremely smooth potent inhalation but its construction means it will last forever and solves many other problems. I designed it years ago for medical patients because I realize they appreciated the variable control of the valve but then I decided to make the design much nicer and out of surgical titanium. The units turned out beautifully so we're very pleased with the units as well as our customers who buy them.