Size 12 Gucci Oura ring. This ring is in pristine condition and includes the original Gucci box, charger and documents. It was only worn a couple of weeks. Gucci does not make this beautiful ring any longer. The last picture shows that I stacked two rings together since it was a little big on me. When I posted this ring previously, someone posted on my listing that an Oura ring would not work with a spacer. What I found on the internet says it will as long as the sensors are are in contact with your finger: https://www.reddit.com/r/ouraring/comments/o6fo0z/any_tips_Oura_Ring From the Uncrate website: BODY / HEALTH & FITNESS GUCCI X OURA RING Gucci and Oura link up to transform the fitness wearable into a luxury accessory. The Gucci x Oura Ring integrates the Finnish brand's sleep and activity tracker into a black band with a black PVD treatment. It's adorned with the Italian fashion house's Interlocking G motif and yellow gold rope details around the edges. Sensors along the interior monitor sleep, activity, readiness, heart rate, respiratory rate, movement, and temperature and send the personalized data to the accompanying app. Its rechargeable battery lasts four to seven days, while the ring is water-resistant up to 100 meters.