Not sure never seen those.
In my green egg I do not like to use fire starters with any kind of chemical that can pernitrate the cooker with toxic or risk it leaching out during the cooking process to give the food an odd taste.
I use a paper towel drizzles with vegetable oil and then roll it up like a wick.
Or Ill use a butane torch like a plumber would use for soldering coper lines together.