Lights with a Single Spark: Start your stove or fire in seconds; Ignite with a single spark, for an easy cooking fuel or campfire starter that saves you time and effort Sustainably Sourced: Cook your camp food without worries with this stove fuel; Burn clean, contain no fossil fuels, and are sustainably sourced from upcycled waste crop vegetation 8 Minute Burn Time: Pack these fire cubes for easy, long-lasting fuel; Single cube burns at 1300 for 8 minutes and can boil 500 mL of water, while two cubes used together burn for 12 minutes Stove Compatible: Grab your folding stove and some Fuel Cubes for ultralight camp cooking equipment; Compatible with most folding cook stoves Highly Portable: Add to your pack, campfire cooking equipment, or travel bag for dependable fuel and fires starters wherever you go; Individually wrapped blocks weigh a mere 0.5 oz. each