Storz & Bickel Volcano ClassicThe Oynx Volcano Classic utilizes convection heating, pushing hot air into the heating chamber, and a patented removable valve balloon system for inhalation with practically no draw resistance. The resulting vapor is pure and smooth. Unlike its digital counterpart, the Volcano Classic features a rotary dial for controlling temperature with precision. The dial has nine settings so the user can pinpoint their preferred temperature. The Volcano Classics