Black Nickel Plated. God Tier Charms feature a lobster clasp, so you can clip them on things like zippers, necklaces, bracelets, and cell phone straps. Charms are enamel filled, and each measures about 0.75" (measurement doesn't include lobster clasp). Charms are enamel filled, and each measures aout 0.75". Necklace chains not included.