Description You’re looking at our purple stainless steel with red inlaid carbon fiber with a beautiful silver heart rate ECG (electrocardiogram) design that circumnavigates the rings. That sentence was a mouthful, but these steel promise rings for couples / wedding bands have a lot to talk about. These couple’s rings are for those looking for a more flashy, yet romantically fashionable ring that says, I love my partner! Perfect for a Valentine’s day gift, anniversary gift, men and women’s wedding band, promise rings for couples, or simply as a random gift with which to surprise your partner! One of the rings is 8mm in width, while the other ring is smaller at 6mm, making for a cute matching set. Please take a look at the product gallery to check out our ring’s custom inlaid carbon fiber crisscross pattern design. These rings have a unique design that you won’t find among other jewelry for couples. They’re made of a high-quality stainless steel that will not degrade over time nor turn anyone’s fingers green. We have stocked many different size combinations for you couples out there, if we happen to not have your specific combination, please send us an email from our contact page and we will see what we can make for you!