Dimensions: 3.5" x 2.5". Developed to help you in an outdoor emergency. Each regular playing card features a safety tip. Card information includes: Hearts (Breathing, Bleeding, Shock, Hyperthermia, Frostbites); Diamonds (Fractures, Wounds, Heat Exhaustion and Heat Stroke, Heart Attack, Bites and Stings,Burns); Clubs (Preparation, Campsites, Shelters, Fire Starting, Signals); Spades (Water, Food, Becoming Unlost). Created By the US Military's Number One Survivalist Frank G. Heyl. Boxed.