The Arizer Solo is a Portable-Handheld Heater that utilizes a rechargeable Lithium Ion battery and features a ceramic heating element and a high quality Glass Stem. Utilizing a sleek and compact design concept, the Solo measures 4.5 ? in Height and 1.75? in Diameter, conveniently fitting inside the palm of your hand. A rock solid outer shell accompanies the Solo protecting the unit from scratching and general wear and tear. Internally, a solid foundation surrounds the ceramic heating element, adding an extra layer of durability.