Oura Ring Stacking Ring Perfectly matches Oura Ring or other smart rings to elevate your ring's style. Available in a variety of sizes (Size 5-11). Please choose the stacking ring size according to your finger size using the size reference chart. Package includes: 2 stackable rings (Smart Ring Not Included). Premium 14K Gold Plated Made with premium 14K gold plating and highly polished for long-lasting brilliance. Lead-free and nickel-free, this hypoallergenic stacking ring ensures lasting beauty and comfort for everyday wear. Elegant & Sparkling Design Features a diamond-like finish that adds sophistication and sparkle to your Oura Ring or other smart rings. Creates brilliant light reflection for a luxurious look that complements any outfit. Perfect for Daily Wear & Gifting Wear it alone for a minimalist look or stack it with your Oura Ring or other smart rings. Ideal for daily wear, special occasions, or as a thoughtful gift, adding elegance to any ensemble. After-Sales Service We offer 24/7 customer support. Please feel free to if you have any questions.