FCL 4mm Men's Tungsten Carbide Wedding Ring Matte Brushed Center Polished Band Size 7-13 Material:Tungsten Carbide. Polished Smooth Inner Surface,Convenient Wearing 4mm Wide Band Ring;Brushed center;Perfectly Suitable for Both Men and Women Size 7-13 optional,come with a ring box. Permanent Money Back Guarantee. You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!