this kind of products is named "Energetic Compressed Fuel Pieces".It is our company'new green fuel production . It is like a white a non-toxic but small size.high-calorie and strong firepower .they are carrying and using is safe and there are non-volatile long-term storae and long distance transport characteristics. There are using for the military and boorder troops outdoor survival camping militarytraining fisheries sonstructionsites mountain tourism snd other places Which is the best choose by cooking barbecue and field works prefered sourses of heat.