• Black Tungsten Carbide Rings with Polished Groove Center.  
• Brushed Surface & Available in 6mm (10g) & 8mm (12g).  
• Scratch-resistant.
• Tarnish-resistant. 
• Hypoallergenic. Good choice for people with sensitive skin or metal allergies.
• Permanently Polished. No re-polishing is needed.
• Low maintenance.
• The price indicated is for one ring.