Charcoal tablets are commonly used to burn resins, herbs, and other incense. Due to their quick combustion and long burn time, they produce little smoke and do not interfere with the aroma of what is being burned. Each package contains 10 charcoal tablets. INSTRUCTIONS FOR USE Light a charcoal tablet and place it in a suitable heat-resistant incense burner with ashes or sand to insulate the charcoal from the base. Gradually place small amounts of resin on the charcoal. It can be burned alone or mixed with other resins. We recommend using cast iron incense burners. Remember to have at least one window open so the smoke can exit the room. Keep out of reach of children and pets.