1. With the superior nickel-binder alloy, free cobalt. 2. Sparkling shine,never lose nice luster, hold its shape and shine longer than other material, permanently polished 3. Scratch proof, Tungsten is about 10 times harder than 18K Gold, 5 times harder than tool steel, and 4 times harder than titanium. Tungsten measures between 8 and 9 on the Mohs hardness scale. (Diamonds are a 10 - the highest.) 4. The highest melting point of all the metals (more 6000 degrees) 5.comfort fit interior design,[...]

With the superion nickel-binder alloy, free cobalt. 1.width: 1.5, 3, 4, 5, 6, 7, 8, 9mm,size 1-36(international standard) 2. can be laser graved, and be cut into mirrored facets,or brush,satin,matte 3.retain real tungsten color,or plated with Zr 4. can be inlayed with Zircon, synthetic gems, diamond,copper nail,or covered with silver 5.with varies kinds of cool and fashion design on the surface or high polished without any design 6.sparkling shine,never lose nice luster 7.comfort fit interior[...]