FCL Blue Rings for Women Tungsten Carbide 4mm Blue Plated Step Edge Brushed Surface Rings Size 4-12 Material:Tungsten Carbide. High Polish Smooth Shiny Inner Face, Convenient Wearing Elegant Matte Brushed Surface, Excellent Touching Feeling Size 4-12 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!