Grenco Science G Pen Hyer Dual VaporizerThe G Pen Hyer is an intuitively designed, dual use, portable enail that works with concentrates or dried herb and pairs with any glass on glass water piece. With The G Pen Hyer Dry Herb Tank Assembly brings dual purpose functionality to your G Pen Hyer with the ability to vaporize dry herb from any water piece. Featuring a full ceramic chamber with 0. 5g capacity and anodized aluminum carb cap with integrated airflow, experience the smoothest draws,