Revolutionary self-activating device designed to extinguish fire. Lightweight shell made from rigid plastic foam with an abrasion-resistant. Extinguishing powder mixture weight 2.9 lbs. (+ or -) Activation time with flame 3 to 5 seconds. Total Weight 3 lbs. (+ or -) 60 sq. ft. coverage (+ or -) 6" diameter 5 Year Warranty