Manufactured by DaVinci specifically for the DaVinci Ascent vaporizer. The uniquely shaped 100% glass piece allows for the hands free, mess free use of loose aromatherapy or essential oils and maintains the integrity of the glass on glass vapor path. This allows for improved cooling and rehydrating of vapor. Fits the Ascent Vaporizer and any standard water tool with a 14mm or 18mm fitting (please select above). No need for additional adapters, just plug into your favorite water tool and start vaping.