Workmanship: 8mm wide wedding ring, blue line center, two tone contrast color, fashion design for men and women Hypoallegenic: Cobalt-free, all tungsten carbide rings are durable and weighty, solid, scratch resistant, color retention Best Gift: Perfect for wedding band, engagement ring, anniversary ring, promise ring and any other occasions Ring Sizing: We suggest measuring your finger size on local jewelry store to avoid unneccessary return Customer Services: Please contact us if you have any questions about your ring, we'll get you back and try our best to help you