The Cold Rush Compact unit is conveniently small, quiet and easy-to-use, delivering cold therapy when and where it's needed. Its single flow setting and easy-fill instructions make this motorized device perfect for use in the clinical setting, or at home. Use to quickly reduce swelling from surgery or injury, and decrease pain symptoms. Its insulated cooler keeps ice cold, allowing the device to provide continuous cold therapy for up to 6 hours before needing to be refilled. The Cold Rush Compact unit is highly portable weighing just 3.5 lbs. This unit comes with a lumbar pad. The lumbar compression pad is designed to apply soothing cold therapy to the lumbar (back) area. It fits any size back.