• Instant activation: The heat pack activates when pressed, providing quick pain relief for 25 to 30 minutes. • Convenient portability: Ideal for carrying in a backpack, purse, first aid kit, car, or suitcase, ensuring you are always prepared for any incident. • Disposable use: Designed for single use, ensuring optimal hygienic conditions for all users. • Therapeutic versatility: Perfect for treating chronic conditions, tendinitis, muscle injuries, contractures, spasms, and joint stiffness. • Suitable for all ages: Safe for babies, children, adults, and the elderly, making it an essential item in school and home first aid kits. • Product dimensions: 14 cm wide, 19 cm high, and 3 cm long, with a weight of 0.22 kg per unit.