This necklace features a real, glass fuse on an 18" white-plated chain, with a lobster clasp closure and a removable 3" extension chain. It comes packaged in a real, silver-colored anti-static bag used in the electronics industry to protect sensitive electronics from damage. These earrings are made from real, 125V 3A glass fuses, 1/2" long and .25" wide and attached to French hook ear wire and secured from the back with rubber wire stoppers. They are packaged in real anti-static bags used in the electronics industry, as well as black foam backing.