Grabber Warmers Offer Superior, All Natural, Portable Heat And Are Standard Equipment For Anyone Who Enjoys Outdoor Activities When It&';s Cold Outside. Warmers Are Air Activated, No Shaking Or Kneading Required; Just Open The Package And Allow A Few Minutes To Start The Process. Grabber Warmers Are Dry, Clean, Odorless, Non Toxic, Non Flammable And Designed For One Time, Disposable Use.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }