Review (2/5): Not Copal
This is not Copal. I've traveled to the Yucatan and purchased both rock resin form of copal and a more convenient version in stick form. The hard resin form must have a secondary ignition source constantly present, like charcoal, in order to burn. The hand crafted stick version burns upon ignition just like any other stick incense.
This particular product is a stick incense labeled as Copal, but it is not. Perhaps it is a mixture that contains trace amounts of copal, if so, they are undetectable to my sense of smell. In other words, do not purchase this product if you are looking for a stick incense version of Copal that is traditionally burned throughout the Yucatan.
Business-wise, great seller (quick delivery, etc). Product is misleading and incorrect.