Profile: Shanghai Dayun Industrial Co., Ltd. specializes in developing, manufacturing, and selling heat packs. The infrared portable heater 1500 effectively heats from floor to ceiling, and is rated to heat 1000 square feet as a supplementary heat source. There is no heat wasted near the ceiling. The unique solar zone process virtually prevents wasteful air layering as with conventional heating systems. This infrared heater operates virtually maintenance free for an average of less than a dollar a day. Mini hand warmer provides warmth and pain relief for the body. It can be carried on day trips and away matches where conventional hot packs are not practical. When removed from the packaging, the air activated warmers come to life for instant heat. When placed inside the secret sock pocket, they will generate soothing heat for up to 12+ hours. These are ideal for use when fishing, hunting, skiing, or sitting around the camp fire. Adhesive body warmer is a portable heating pad. It provides soothing comfort for minor aches and pains, as well as extended everyday warmth during outdoor sporting activities. Body warmers are standard equipment for skiers, snowboarders, hunters, campers, hikers, birdwatchers or anyone who enjoys outdoor activities when the weather is cold.