The CNBRO Smart Ring is a stylish and functional piece of jewelry that monitors your heart rate and sleep patterns. Made of stainless steel with a multicolor design, this ring is a unique take on traditional jewelry. With a ring size of 12, this piece is a comfortable and fashionable accessory for any woman looking to track her health and wellness. Perfect for those who appreciate both fashion and technology, this smart ring is a practical and trendy addition to any jewelry collection. (ITEM IS BRAND NEW OPENED AND INSPECTED BY ME) has awesome light up case and color bands for fashion