Copal is a tree resin that comes from the copal trees (Protium copal) of Central America. It has been used for centuries by Mexican and Central American native cultures where it was burned during ceremonies and rituals.
This is white copal, which has a soft, sweet smell when burnt, and is used to help clear the room of negative scents and energies.
The size of the resin chunks may vary from small crystals to large pieces. Even the smallest pieces are burnable.
Don't forget your charcoal!