MJ Metals Jewelry 3, 4, 6, or 8mm Flat Pipe Cut Tungsten Carbide Mirror Polished Ring Band Handsome Band - Crafted with beautiful tungsten carbide, each ring is pipe cut and boasts a mirrored polished finish, giving it a stunning look for work or home wear. Heavy-Duty Resiliency - This premium-grade tungsten carbide rings durable enough for day-to-day wear. Comfort-Fit Technology - Available in 3mm, 4mm, 6mm, or 8mm widths, these rings slide over your finger smoothly. Custom Engraving - Put a special date or message on this tungsten carbide ring by selecting the engraved version and we'll laser engrave a personalized message inside. To have this ring laser engraved with your personal message please search item number B01DOF9AC6 in Amazon.