Shoyeido Charcoal Type A. Miyakozumi Japanese incense charcoal lights easily and burns with little odor. Ideal for granules, wood chips, resins, or pellet incense. Burn only in a non-flammable, heat resistant incense burner containing ash or sand. Keep charcoal incense away from humidity for consistent lighting. 
 
Click here for a demo on how to set up your burner with ash and charcoal.
 
10x charcoal tablets
Charcoal Measurements:
1" long x 1/2" wide by 1/4" thick