Pack of ten. Coated with a special material which means that it can be lit with a lighter or match. The coating sparks across the charcoal surface and then should be left for a few minutes until it has started to heat through. These excelsior tablets are fast lighting, smoke-free, odorless and long burning and means they shouldn't interfere with the scent of the incense. 

The charcoal does get very hot and can glow red so great care should be taken. The disc should be placed inside a heat resistant container with earth inside (if required) to shield the strong heat. Once alight the resin can be spooned gently onto the charcoal and the resin becomes an incense and the delightful aromas are released. You can then add more resin as required.