THese Charcoal Discs are 100% Chemical-free - consistaong only of coconut, fruitwood & charcoal: guaranteed potassium nitrate free, no chemical impurities or lighting agents. The safest charcoal to use.
Using charcoal which does not contain lighting agents, will give you a pure and fragrant experience and will not scorch your products or create toxic smoke. 
Each roll contains 10 x 33mm charcoal tablets.
 
Note: due to being lighting agent free this charcoal will take longer to light than common brands of charcoal, ensure to hold the charcoal over a flame for a longer period of time until it begins to light. This can take anywhere from 45 seconds - 2 minutes depending on the strength of flame. Note that this charcoal will not "spark* to ignite due to the absence of the lighting agent. Instead hold it over a flame, targeting its edges, until it begins to burn slightly. It will increase in heat itself slowly and spread, and burn for a long period of time.