YHY Men's 8mm Tungsten Carbide Ring Wedding Bands 18K Rose Gold Plated Domed Brushed Matte Comfort Fit 8mm tungsten ring for men women 18k rosegold plated Cobalt Free and Nickel Free Hypoallergenic and Scratch Resistant/Proof.Super smooth and comfort fit Comes with a FREE Ring Box. Great gift for Valentines Day/ Birthday/ Mother Day/Father Day/ Christmas/ Wedding/ Engagement/ Promise/ Anniversary Jewelry Fast shipping for Prime,Free return and exchange size,30-Day Money Back Guarantee. Thanks to the first guy to comment on us, Let us recognize need to declare: Although we do not have a lifetime warranty service to purchase, we promise that if the tungsten rings sold by YJHOUSE are damage-Broken/Fade(non-human damage)---- 100 days free exchange