【Oura Ring Stacking Ring】Perfectly matches Oura Ring Gen 4/ Oura Ring Gen 3/ 3 Horizon and any other smart ring. You will get a stackable ring to elevate your smart ring's style. A variety of ring sizes for you to choose from (SIZE 5-10) . Please choose the ring size according to your finger size by the size reference chart. (Note: Smart Ring not included) 【14K Gold Plated Ring】Made with premium hypoallergenic 14K gold plated, oura ring stack is lead-free & nickel-free with high polish and plated surface ensured durability and long-lasting shine. (Note: Please avoid contact with corrosive substances, includes daily skincare and cosmetics.) 【Sparkling Stackable Ring】Contains unique simulated diamond elements, oura ring diamond stack encircle the finger in a beautiful and lively sparkling. Perfect for stacking with smart rings or wearing on its own, oura stacking ring allows you to create a unique style with any outfit. 【Ideal Gift for Women】Elegant and sparkling stack ring is a good alternative to be a wonderful gift for you, mother, lovers, couple, wife, etc. Suitable for birthday, Valentine's Day, Christmas, Mother's Day, Anniversary, etc. It is comfortable for all-day wear, ideal for daily use and special occasions. 【After-sales Service】We offer 24/7 friendly support. Please feel free to contact us if you have any question. Polyjoy 14K Gold Plated Stacking Ring for Oura Ring Gen 4/Gen 4 Ceramic/Gen 3, Sparkling Cubic Zirconia Decorative Stack Rings Stackable Bands for Women