Solid 14K Gold, 20 gauge earring studs with trafitional butterlfy style backing. Solid in pairs only. Available in rose gold, yellow gold, and rhodium plated white gold. Rhodium plating is not ideal for people with metal allergies. If this is you, opt for yellow or rose gold! As all Gold pieces in the LUARGOLD line are hand made, please allow 1-2 weeks for completion.