NEHOO cold therapy machine is designed to reduce pain and swelling after surgery, shorten recovery time. A quiet pump continuously deliver cold water to the flexible cold pad, applying a comfortable and stable cold compression. Compared with the traditional ice pack, this cold therapy machine is more convenient, users don't need to unwrap and replace the ice packs repeatedly which could bothers a lot. Instead, a seven-quarts bucket can hold enough ice for hours. This machine also provides 3 flow rates for users to adjust the temperature of the cold pad. With elastic bandages, the soft therapy pad can be perfectly wrapped around any body part. This machine weighs only 6 pounds, it's very light and portable. Even if it is filled with ice and water, a single person can easily carry it. Warranty: We will provide free merchandise exchange service if any malfunctions(non-human) occur within ONE year of purchase.