RAVI-Instant Wine Refresher (Silver) (7.75"H x 2.5"W x 2.5"D) A simple, efficient, instant, and easily portable wine cooler, the Ravi does away with the need for ice buckets or refrigeration Insert into bottle neck and pour; wine is chilled instantly as it passes through an inner frozen tube Tube made from same stainless steel used for wine fermentation tanks; maintains wine?s characteristics and never alters taste A valve controls the rate of flow of wine in order to regulate the temperature, since not all wines are enjoyed at same temp Store in freezer when not in use; stays efficient for 90 minutes out of freezer; requires hand washing for care