Water cooling vest that circulates cold water to cool the body. - Product Name: WATER COOLING VEST - Set Contents: Vest, battery, connecting hose - How to Use: Circulate cold water through the tubes - Safety: Safe design - Cooling Method: Water cooling Unused item Thank you for viewing. This is being sold at my father's request. I'm offering this for sale in hopes that someone in a hot region will find it useful. The box has a slight crease.