Features1Compact and Lightweight: The hand warmer easily fits into pockets or bags, making it ideal for camping, fishing, and other outdoor activities during cold seasons. A must have for convenience and easy transportation. 2Sturdy Material: Made from high strength aluminum material, this portable hand warmer is sturdy, robust and erosion resistant, can withstand harsh weather conditions, ensuring long term use. 3Long Lasting: Once activated, the refillable hand warmer provides heat for 6 to 12 hours continuously. Its fast heating capability ensures you stay warm for hours. It is refillable and reusable to provide lasting value. 4Flameless Heating: The reusable hand warmer employs a catalytic inflamer for safe, gentle warmth. This flameless design makes the hand warmer safe to use while providing consistent heat. 5Easy Filling: It features a simple filling technology that reduces spills. Fill the oil cup with lighter fluid, slowly pour the fluid into the hand warmer's oil hole, while keeping it upright. Easy and convenient, it ensures continuous heat supply.SpecificationItem Type: Refillable Hand WarmerMaterial: AluminumPackage List1 x Hand Warmer1 x Storage Bag