Fuel Express Blaze Natural Firelighters come in a pack of 24 and are clean, convenient and easy to use. They are made from pine wood sawdust impregnated with flammable Paraffin wax. The firelighters are non-toxic and friendly to the environment and are suitable for all sorts of fires as well as BBQs. Fuel Express Instructions for Use: Break off two or three firelighter cubes and place them under a layer of wood, charcoal or other fuel. Light the cubes and let them burn for a few minutes before adding more fuel. Please note that for starting a new fire in woodburning and multifuel appliances, Corinium Flue Systems recommend using the firelighters in conjunction with kindling and/or newspaper before adding larger logs or coal. This will warm up the flue, therefore increasing the draw and preventing the likelihood of smoke entering the room.