The Pathfinder Bottle Stove is a light yet strong stainless steel stove that is built to use with solid fuel tablets for a fire source or small twigs and wood. This Stove was designed to fit over cups that nest over a one liter bottle such as the Nalgene. It is a perfect companion for the Pathfinder Gen-3 Bottle and cup set or cups such as the Stainless Space Saver Cup and the GSI Stainless Bottle Cup. You can then nest your water bottle in the cup and have the combination of a stove, cup, and water bottle. Specifications: Made from Food Grade Stainless Steel. Measures 3-7/8" diameter x 3-3/16" high. Weighs 3.2 ounces.