Solid fuel alternative to liquid charcoal fire starters. This product has been stringently tested and complies with the South Coast Air Quality Management Rule 1174 ref. C58. These high-performance squares light quickly and easily, burn 8-12 minutes even when wet! Suitable for charcoal grills, fireplaces, wood and pellet stoves, also campfires. Non-explosive, no dangerous flare-up. Non-toxic, will not flavor food. The compressed wood chip and wax based squares contain 10 percent recycled wood and paper fiber.