🌍 Travel Smart, Stay Cool! Stay charged on-the-go with a built-in USB port for your devices. Enjoy peace of mind with our responsive customer service, resolving issues in under 12 hours. Holds 1-7 insulin pens or vials in a generous 900 ml container. Crafted with stainless steel for superior insulation and durability. Experience 3 distinct cooling methods tailored for your travel needs. USB Charger 72 Hours Cooling 3 Cooling Methods The 4ALLFAMILY EXPLORER is a TSA-approved insulin cooler travel case designed for diabetes management. It features three cooling methods, a spacious 900 ml storage capacity, and a built-in USB charger, ensuring your insulin remains safe and at optimal temperatures for up to 72 hours during travel.