These are compression socks from Okamot's. Two pairs in black. They use patented spiral compression to push the blood accumulated in the calves back up to the heart. Recommended for those who stand for work, sit for work, or whose legs tend to swell. This product has a right and left sock, so please wear them according to the R (right) and L (left) markings on the inside of the cuff. To ensure proper compression, align the heel position and adjust the LR mark to be in the center of the neck. Size: 23-25cm Color: Black *The outer packaging bag will not be included to make the packaging more compact. Please be aware of this before purchasing. Only the socks themselves are included, but they are definitely new and unused products. This is the discounted price for a set of two, so no further discounts are available. Thank you for your understanding. We will ship via Yu-Packet Post Mini on the same day or the next day.