Medicool Diabetic Poucho Case For Insulin Travel Single Pen Back Neck Therapy * Molded rotary knob for Undercast Padding * Molded rotary knob for comfortable resistance adjustments and quick stop operation Ultra powerful compressor for both humidification and High Flow High Pressure nebulization of viscous medications * Optimizes medication delivery by aerosolizing to a particle size of < 2 microns * Easy to read Pressure Gauge * 1 Year Limited Warranty 5 x 7 * The poucho case is easily activated with just water * Large enough for pens and bottles * Keeps insulin bottles or pens cool without refrigeration * Great for active travelers * Can be used and re activated a hundred times * Stays cool up to 4 days Supplies Not Included Single Pen 2