Small flat spiral earrings are made by carefully shape glass rods in a 2,000 degree flame. The glass is gently guided into a flat spiral using heat and gravity. Made with Borosilicate (Pyrex) Glass, Life Time Warranty. Fish hook ear wires and jump rings are sterling silver. Approx. 1” Tall, .75" Wide Each piece comes with info card about the artist and how the piece is made.