Yin Yang Best Friend Love Couples Lucky Crystal Points Agate Sky Blue Simulated Cats Eye Amulet Necklaces Best Amulets Collection. Yin Yang Energy Best Friends Love Couples Lucky Crystal Points Agate Sky Blue Simulated Cats Eye Amulet Necklaces Set of Two Cute and Attractive Lucky Crystal Points Necklaces. Size: Each About 35 X 10mm (+/-), Approximately 1  inches long. Double Lucky Yin Yang Set Amulets. Ready to wear with High Quality Cotton Waxed Adjustable Cord which adjusts from 16 up to 24 inches long. Comes with Cute Gift Style Packaging.