Features Lights with a Single Spark - Start your stove or fire in seconds. Bio-Based Ethanol - Cook your camp food with fire blocks that burn clean, contain no fossil fuels, and are sustainably sourced from upcycled waste crop vegetation. 8 Minute Burn Time - A single cube burns at 1300deg for 8 minutes and can boil 500 mL of water. Stove Compatible - These fuel blocks are compatible with most folding cook stoves. Highly Portable - Weighing .5 oz. each, add to your pack, campfire cooking equipment, or travel bag. Weatherproof Fire Starters Build your fire in the most extreme conditions of driving rain, wind, snow, or cold. Fire Lite Fuel Cubes light and burn even when wet. Specs Single Cube Weight: .4oz