Yin Yang Best Friends Amulets Magic Powers Donuts Black Agate White Quartz Pendant Necklace Best Amulets Collection. Double Lucky Yin Yang Love Couples or Best Friends Set Amulets Magic Powers Donuts Black Agate White Quartz Gemstones NecklacesYin Yang Best Friends Amulets Magic Powers Donuts Black Agate White Quartz Pendant Necklace Size of Each Amulet: 30mm (1 1/4"). Each Donuts Amulet is Hand Carved and made with Love and Care. Each Ready to Wear with Waxed Cotton Cord which adjusts from 15" up to 24" long. Each Amulet is Made from Gemstone Crystals and may or will have Natural Inclusions and Specks. Each Comes with Branded Packaging