WetFire(TM) Tinder is a universal lighting material that is safe, lightweight, and easy to carry. Guaranteed to light in windy or wet conditions and only requires a small amount of tinder to build a fire. Extinguishes instantly Cubed-tinder are individually packed to maintain freshness Will burn longer when wet or moist Great for use in combination with any UST sparking device 5-year shelf life Size: .75"H x .75"W x .5"D (19 x 19 x 13mm) Weight (per cube): 0.16 oz (4.5g) Package of 8 Color: White Warranty: Lifetime Limited Warranty