Crafted from brass in a Victorian style, The Professor utilizes the Hario V60 glass pour over (included) resting on the ring to adjust to the height of your mug or decanter. The ring adjusts using the brass arm and rod to the height you need. The base is made of solid brass.
The ring can accommodate a number of other pour over cones and bases. The base is designed to sit on top of many popular scales including: Acaia Lunar and Hario scales.