The Mega Warmer offers maximum heat (average 135 degrees) in a larger pocket -sized warmer. Ideal for sleeping bags, pockets, emergency kits, or any time you want to stay warm. Mega Warmer is odorless, clean, dry, non-toxic, non-flammable, and biodegradable. No shaking or kneading required; simply open package and use. Grabber Warmers is a recommended product by the National Ski Patrol. Grabber Mega Warmer is great for hunting, camping, emergency use, snow sports and spectator sports. Also great for relieving pain associated with arthritis and poor circulation.One warmer per pack..