The Hinged Carb Cap Infiniti Nail Attachment. Created by Highly Educated for Doug of Hitman Glass, a flippable hinge is used to attach the carb cap to the titanium moat. Never lose you carb cap again and always have it where you need it most. Conveniently carb your dab by flipping the hinged cap over the moat. When the moat is capped, the two opposing holes on the cap's sides evenly restrict air intake while slowly vaporizing your concentrates at a lower temperature. These dishes feature InfiniTi threads which allow them to connect to an InfiniTi Nail, H-Adapter, or 10mm H-Adapter (sold separately) to make a complete nail assembly. The cap also provides insulation as well as protection from wind for outdoor applications. These Limited Edition Ball Cap Hat themed Carb Cap Attachments come engraved with Highly Educated and Hitman logos.