Just The Right Size - The case is made of EVA material 1680D nylon, measuring 8.26 x 2.36 x 2.16 inches. Because of the special material, the case is so lightweight and durable that it can protect your medical supplies well. Good Insulation Effect - The liner is made of high-quality Aluminum foil. As is known to all, this material has an excellent insulation effect. Beside, the ice pack in the case makes sure that your insulin keep the temperature below 8 degree around 6-7 hours (The exact duration depends on the actual situation). Whether in hot summer or chilly winter, your medical supplies can be well-stored. Daily Office Work - Providing a closed cold chain environment, this Skinny Case is custom-made for office workers. It has room for an ice pack and a single Insulin pen, giving all you need day to day for your minimalist needs. Small enough to fit in any work bag, handbag or pocket. RoHS Test - SHBC strictly enforce quality control standards. All materials, which are of superior, can pass RoHS tests, ensuring the products are nontoxic and harmless to human body. Safety and durability guarantee provides you with a pleasant shopping experience. Lifetime Guarantee - SHBC fully stand behind our products and wish to offer our clients 5-star experience. If you have any problems with this purchase, please contact us at anytime. SHBC will give you a satisfactory reply as soon as possible. If you are not satisfied with our product for any reasons, please also contact us and your kit will be replaced, or you will get the money back.