Application:Mainly to be used to store and transport the insulin,Insulin injection refill,insulin pen,vaccine, growth hormone all medicines required to storage in cold, at normal room temperature condition.Principle:The liquid in the cold storage bottle is Natural Biogel,it's environmentally friendly and there is no harm to health. If any questions contact us any time!Instructions:Put the Cold storage bottle in the freezer for 6-8 hours, after that take it out aside for 5-10minutes,then put the frozen Cold storage bottle in cooler cup,and then it will work. Note: After the Cold storage bottle is frozen, it will become a solid at 32F. Put the Cold storage bottle into the cooler cup and tighten the lid for 5 minutes. Check the temperature inside,when temperature is stable at 35.6F,take the medicine into it.SPECIFICATION:Material:stainless steelSize:10 3.15inWeight:1.2lbColor:blackPackage includes:?1 Insulin cooler cup, 3 Cold storage bottle,1 Emergency bottleNOTE:? Due to differences between different displays, the picture may not reflect the actual color of the item. We guarantee that the style is the same as shown in the picture.?Due to manual measurement and different measurement methods, please allow 1-3cm deviation. Thank you!?100 SERVICE:If you are confused about the quality of the product or have any other questions, you can email us and we will be happy to solve the problem for you. If you are not satisfied or inappropriate about the product, you can contact us and we will give you a satisfactory answer. ?SUPER CAPACITY: The insulin cooler case can storage 3 Insulin pen in normals size.check the images to get more storage method and quantity. ?GOOD INSULATION EFFECT: Performance better than freezer bags.Stainless steel design for cup body,internal vacuum design,can better protect your insulin.All of the bottle is FDA approved and nontoxic. ?GREET COOL EFFECT: The insulin cooler can make the insulin keep the temperature at 2-8 degree for 28 hours,Even if at an external temperature of 30 C 86 F.Cooling effect better than insulin cooler bag. ?PORTABLE: Portable insulin cooler ,easy to carry,TSA Approval and Luggage Check-in is Acceptable.Can take the insulin cooler travel case to airplane or train.