The Zippo 12 Hour Refillable Hand Warmer in Chrome Silver is a durable and lightweight hand warmer suitable for outdoor activities like hunting, camping, and hiking. With an effective duration of 12 hours and an activated temperature of 140 °F, this hand warmer provides warmth and comfort during cold weather conditions. Made of aluminum and metal, this hand warmer is compact with dimensions of 4 inches in length and 2.75 inches in width. The Zippo brand ensures quality and reliability, making it a practical and convenient addition to any outdoor gear collection.