Glucology™ Insulin Cooling Wallet Pouch No Ice Pack or Batteries Needed New Innovative Technology Perfect for Travel Duo Pen Pouch, Black bee05 Professional Home & Salon Use: bestsellers_healthUK_Aug2023 Professional Home & Salon Use: Suitable for professional salons and personal home use UNIVERSAL TEES: Made to fit into any standard driving mats for countless hours of practice to step up your game our insulin cooler pack is designed to keep your insulin cool (below 28 C) for up to 36 hours at a time just reactivate the bag by immersing it again in cold water to keep your insulin cool for another 36 hours