✨GUCCI × OURA Oura Ring Black US13 (Rare Size)✨ Thank you for viewing. I am selling this because I no longer use it due to the design. This is a smart ring created in collaboration between GUCCI and Oura. It monitors health data such as heart rate, body temperature, and sleep, and can detect stress and changes in physical condition. It is ideal for daily health management and improving your lifestyle. • Size: US13 (Men's middle to index finger size / equivalent to Japanese size 26) • Color: Black • Material: Black synthetic corundum, brass for the metal parts • Weight: 4g (lightweight and comfortable to wear) • Accessories: All included (please check the photos) • Condition: No noticeable scratches, beautiful condition This is a rare size, so it is especially recommended for those who have been looking for it. Please take this opportunity to get this special ring that combines health and design ✨ ※ Notes • Body serial number (app display): 2F3D2 **03 • Box label number: 2F3C2 **30 ※ The size written on the box may differ from the body size. This is a normal phenomenon in the shipping and inspection process for Oura Ring, and it is a genuine product that has been authenticated by the official app, so please rest assured. If you have any questions or would like to negotiate the price, please feel free to comment!