Grabber Hand Warmers can keep your hands warm year 'round. This little pouch contains all natural ingredients, which are activated when exposed to air and designed for one time use. The warmers are odorless, clean, dry, non-toxic, non-flammable and biodegradable. No shaking or kneading required; just open the package and put warmers into your gloves or pocket and the warming process begins. Also useful for warming up food products and keeping camera batteries warm. Grabber Warmers are recommended by the National Ski Patrol.