The charcoal briquettes are available with either 5 or 10 (thinner) per roll.
The disc should be placed inside a heat resistant container with earth inside (if required) to shield the strong heat. Simply ignite the briquette, wait for it to turn white around the edges and then place the incense or resin on it! The delightful aroma of the resin is released. You can add more resin as required.