The Large Squid Go Ankle Full Unit is used for temporary pain relief of aches and pains. This lightweight and portable unit is designed for individual use. It offers 4 preprogrammed levels of compression. The wrap fits men's shoe sizes 13 to 20 or women's shoe sizes 14 to 20. The pump has a rechargeable battery and is good for up to 15 uses on a full charge. The full unit includes the pump, large ankle wrap and gel pack.