Jstyle Titanium Engagement Rings for Men Promise Ring Jewelry 8mm Made of High-tech Titanium, Light Weight and Free of Heavy Sensation; High Polish Smooth Inner Face, Comfortable Wearing; Half Row AAA+ Cubic Zirconia Inlaid, Excellent Inlay Technology Guarrantee the Firmness of Stones; Stylish Brushed Matte Surface Design, Great Touching Feeling; 90-Day Money Back Guarantee or Exchange;