Experience lasting warmth with these premium Korean heat packs, designed to provide up to 15 hours of consistent heat. Each pack in this convenient 10-pack set activates instantly when opened, requiring no batteries or external power source. The packs reach an impressive temperature of up to 158°F (70°C), making them perfect for outdoor activities, sports events, or daily commutes during cold weather. Measuring 4.7 x 3.9 inches, these compact warmers are easily portable and fit comfortably in pockets or bags. They're ideal for keeping hands and body warm during hiking, camping, sporting events, or any outdoor winter activities. The packs feature a charming mascot design and come individually wrapped for convenience. For optimal use, simply open the pack when warmth is needed - no shaking or preparation required. These warmers maintain a stable temperature throughout their duration, providing reliable heat when you need it most. Remember to follow the included usage instructions and avoid direct skin contact for safe and effective warming.