Metal Skull & Crossbones Cast Button Ornament with Rivet 12 Pcs Hard-to-find Skull & Crossbones solid cast metal ornament bright nickel with black epoxy wipe-off finish, great detail 5/8" wide, by 1/2" tall. Each one weighs about 1/10 ounces. Post on back accepts rivet cap, easily applied with a quick tap of a hammer or mallet