CANTEEN CUP FUEL STOVE SPECS: Holds the canteen cup so you can use a trioxane or esbit fuel tab, or feed a fire with small twigs and wood if need be. Then, when you are done simply turn it over and drop it right onto the bottom of the canteen cup for storage and carrying! Every Canteen set you have should have one. GSA Compliant, Made of Heavy Gauge Aluminum. Made to military spec.