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. . Product describes 1, the specification: Dice: 45 * 45 * 11mm weight: 25 A? 2g/piece; Packing: 49*49.5*12 2, the product packing: In packing for transparent plastic bag seal packing. 8pieces/bags, 1 bag /box, each box of net weights 200 grams; Each box of internal installation 100 boxes, net weight 20 kilograms, paper box seal. (Or defers to customer request) 3, the combustion time: The 20g fuel may the fuel 15-25 minute, the firepower strong, the flame temperature may reach 600 A?C, smokeless tasteless, non-toxic and no residual, can boil thoroughly 250 grams rice or 1 kilogram water. the part of left can be used next time. 4, hardness: Hard (resembles compressed biscuit). The matters needing attention Donot mixwith food, lays aside the place which not contacts to the child, should preserve under the normal temperature, moisture-proof, away from fire. the product packing: In packing for transparent plastic bag seal packing. 8pieces/bags, 1 bag /box, each box of net weights 200 grams; Each box of internal installation 100 boxes, net weight 20 kilograms, paper box seal. (Or defers to customer request)