Gold Tone Infinity Loop Charm Necklace. Gold Tone Infinity Loop is approximately 0.74 x 0.57 x 0.08 inches (HxWxD). The infinity symbol is a mathematical symbol, but is often used to represent eternal love. Silver plated necklace is 19 inches plus 2 inch extender chain. Lobster Claw Clasp. Beautiful fashion necklace makes a wonderful gift. PLEASE NOTE: Our products are lead safe, but are not intended for children 14 years and younger.