Lightweight, safe, and easy-to-carry, UST's WetFire Tinder 12-pk is guaranteed to light in windy or wet conditions. Requiring just a small amount of tinder to build a fire, you can shave off a small piece or use the entire cube depending on the level of wind or moisture. WetFire tinder burns up to 5 minutes and can be extinguished instantly. Offering a 5-year shelf life, the cubed tinders are individually packed to maintain freshness. They're great for use in combination with any UST sparking device, including StrikeForce, SparkForce, BlastMatch, and Sparkie (sold separately).