Designed to be used with the Esbit stove, these solid fuel tablets are nontoxic, nonexplosive, and virtually odorless and smokeless. They generate up to 14000F of intense heat, providing 12 min. of usable burn time per cube. They do not liquefy when burning and don’t leave an ash residue. It burns efficiently at high altitude sights with ordinary wooden matches and can be extinguished and reused. One box contains twelve 0.5 oz Esbit Solid Fuel tablets.