Adhesive Heat Pack, hot pack, heating pad, warmer pad [Product Name] Adhesive Heat Pack, hot pack, heating pad, warmer pad [Main Component]Iron powder, activated carbon, vermiculite, wood powder,salt, warter [Application] 1.Use heat therapy to relieve aches and pains from arthritis,joint stiffness,lower back pain,tight muscles,minor strains,tension and stress,and cramps.2.Can be used on different areas such as the back,elbow,shoulder and hip. 3.Can be used by athletes,outdoor enthusiasts,sportsmen,spector.Skiers,construction workers-anyone who hate cold weather. [Features] 1.Warm, soothing relief for muscle and arthritis aches and pains2.Air-activated, self-adhesive back3.Safe,odorless,micro-thin,easy-to-use,environmentally safe4.Average temperature is 52 °C5.over 12 hours of natural therapeutic heat[Technical Data]SizeAve. temperaturePeak temperatureHeating Time7cmx7cm60°C80°C6-8hoursSizeAve. temperaturePeak temperatureHeating Time10cmx13cm60°C80°C8-16hours[Usage]1.Simply open the outer package,remove heat pack and expose the heat pack to air. 2. Remove the paper back and adhere the patch to the outside of your underclothes. [Notice] 1.Do not place adhesive side directly to the skin.Personal heat patch will warm gradually; warmth will last up to 12 hours. 2. For external use only.Check skin regularly and remove heating pad if it becomes too uncomfortable. 3. Do not use in combination with creams,rubs,lotions or salve-type analgesic products. 4. Do not apply heat patch to broken or sensitive skin. 5. Do not use during sleep,with infant,on frost bite,or on desensitized skin. [Specification] 7x7cm10x13cm[Package] 1 pc/poly bag,300 pcs/ carton [Storage] Store in a cool and dry place [OEM Service]We can make different heat pack with different size and shape andchange the heating hours and temperature range accroding to your request!Making box and printing box are available ]