Thermal Heat Pack For Transport Shipping Live Fish Insects Reptiles Plants Warming Heat Pack Our long last thermal heat packs are an essential accessory when transporting your live pet fish, reptile, plants or corals. We have three different packs, each keeping warm for a different amount of time. The small pack lasts for roughly 40 hours and will keep your pet animals/tropical fish and plans nice and warm during the transportation shipping process. The medium pack will last upto 72 hours and the larger pack will keep your fish warm for a massive 110 hours! Warming heat pack is designed for the safe transportation of tropical fish, corals, reptiles, amphibians, insects, live foods, flowers and plants. These heat packs are disposable, biodegradable and environmentally friendly. Our long last warmer packs are recognized worldwide as the preferred choice of both professional shippers, importers, hobbyist shippers, and transporters of livestock in the aquatic and other sectors. – Easy to use: Open package and expose the heat pack to air, after about 5 minutes it will start to give out heat. No need to shake.- Ingredients: Non-toxic: Iron powder, activated carbon, belmilite, salt, water- Storage: Seal airtight, store in cool and dry place, avoid exposure to direct sunlight Product Type:Disposable Portable Heat Pack for long distance transportationMaterial:Iron Powder, vermiculate, active carton, water, saltMaximum Temperature:Approx. 149℉ (65℃)Average Temperature:Approx. 122℉ (50℃)Duration Of Heat:40-110 hoursWeight:85 gSize:Approx. 13.5cmx9.5cm.Date Of Expiration:2 Years Please select which size of thermal heat pack you would like from the dropdown menu and also the number of heat packs you would like to order.