These were made by me. Hooks are 925 Sterling silver, nickel free, for sensitive skin. Earrings are double sided. Comes with a 16-18 inch adjustable black wax cord necklace. NWOT. Will ship with USPS tracking number. Sent from Pensacola, FL. Like more from my shop? Feel free to bundle items or let me know what you like, and I can bundle for you. Thank you for your interest.