Round canteen cup fits onto the bottom of 32 oz round Nalgene bottles. Handles are long enough to use the cup to cook in and then they fold flat against the side for storage. Use it to heat up your Coyote Camp entrees over the fire, or make soup or tea to warm you up while you’re on night shift. Even heating, rust proof, fire proof, non-reactive and fuss free. Holds 18 oz of liquids.