The Frio Large Insulin Pen Wallet in black is a specialized cooling storage solution designed to keep insulin pens at a safe temperature. This large-sized wallet provides reliable temperature control for insulin storage on the go. Key features: • Large size capacity for insulin pens • Black color design • Cooling technology to maintain safe insulin temperature • Portable and travel-friendly • Reusable cooling wallet system The Frio Insulin Pen Wallet uses innovative cooling technology that helps maintain insulin at safe temperatures without the need for refrigeration. The large size allows for convenient storage and organization of insulin pens while traveling or during daily use. The black color offers a discreet and professional appearance.