This is a replacement mouthpiece for the Herby dry herb vaporizer. Included in the kit is the mouthpiece and two stainless steel screens. The mouthpiece disassembles easily for thorough cleaning. A quick soak in 91% Isopropyl Alcohol, for about twenty minutes, is a great way to keep the mouthpiece clean of any material buildup. Be sure to rinse the mouthpiece under warm water, and then allow to completely dry before using.