Our 7mm-08 Adjustable Bullet Ring is made from a real recycled 7mm-08 Bullet Casing! The silver plated ring base is adjustable. The nickel bullet casing features a genuine Swarovski Crystal in the center (color of your choice, or none at all). (April crystal shown.) The 7mm-08 bullet measures just under 1/2" in diameter. Recommended for ring sizes 6-9!