Itty bitty headpins - just enough wire to insert a 6mm bead (shown) and make a loop. Brass base, durable antique copper finish. Pins are about 0.6 inches (16mm) long. They are a bit thinner than a 22 gauge wire at 0.6mm thick. You'll typically find about 70-75 pins per 0.1 ounces. Sold by weight - 0.1 ounce packages.