Features: Discover the stainless steel intelligent temperature sensitive ring, a perfect blend of style and technology that changes color to display your body temperature, offering real time health monitoring. Crafted from stainless steel, this waterproof ring features elegant design, ensuring it remain rusts free and fashionable without the need for batteries. Ideal for couples, spouses, especially users seeking both style and functionality in their accessories. Perfect for daily wear, dates, or anniversaries, this ring allows you to effortlessly monitor temperature changes, enhancing intimacy and connection. With its precise temperature sensing and comfortable fit, the ring is more than just jewelry—it is a thoughtful gift that combines elegances with practicality. Specifications: Component:Stainless Steel Size(8): Circumference:Approx.57mm/2.24inch Diameter:Approx.18.1mm/0.71inch Color:Blue/Black/Silver/Gold Weight:5g Package Includes: 1PC Stainless Steel Ring note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color about the item.