The Highly Educated Carb Cap is a new titanium accessory designed to work with the Highly Educated DualiTi/InfiniTi and E-Nail set ups. The point of using a Highly Educated Carb Cap is to obtain full vaporization at the lowest temperatures possible. Compatible Nails: DualiTi / InfiniTi Large Cap Compatible Attachments: HE M/S/L/XL shafts, CC Ball Point Dabber, CC Flat Tip Dabber (sold separately) Material: Grade 2 Titanium Polished Easy to Clean Surface Made in the U.S.A.