spikes Men’s Tungsten carbide Abalone Inlay Center silver hypoallergenic Ring‎ size 13

size 5, 6, 7 and 8 also available in 6mm width Tungsten is hard, heavy, durable and scratch resistant.A tungsten ring will also always retain its bright, shiny luster. They have a permanent polish, meaning they don't have to be polished or need as much maintenance as rings made of other metals. The Mohs Scale of Hardness for Metals Lead: 1.5 Tin: 1.5 Zinc: 2.5 Gold: 2.5-3 Silver: 2.5-3 Aluminum: 2.5-3 Copper: 3 Brass: 3 Bronze: 3 Nickel: 4 Platinum: 4-4.5. Steel: 4-4.5 Iron: 4.5. Palladium: 4.75 Rhodium: 6 Titanium: 6 Tungsten: 7.5. Hardened steel: 7-8. Tungsten carbide: 9 unisex, wedding band, casual ring, couple rings