The tradition of wearing a horseshoe necklace for good luck stems from the use of the horseshoe as a symbol of protection. During the Middle Ages, people believed that witches and evil spirits were afraid of horses and horseshoes, primarily due to the fact that horseshoes were made of iron and could resist flames. BASE METAL - 14K gold. LENGTH - Approx 16" with a 1" extension. CLOSURE - Spring Ring Clasp. PENDANT MEASUREMENTS - Approx. 0.6" X 0.6" STONE TYPE - Turquoise. A solid 14K gold piece like this is tarnish-resistant, durable, and will not discolor at all. It is great for everyday wear, even in the shower, beach or gym! With lots of love and great care, it will last a lifetime. Ember Fine Jewelry is known for its resilience and shine. Designed with versatility and comfort in mind, these pieces go with you from casual to active.