Inspirational Power and Strength Amulet Lucky Charm Magic Donut Black Agate Necklace Best Amulets Collection. Very Unique and Special Engraved Lucky Donut Charm Pendant Necklace with Inspirational Statement. Amulet Donut Size: 30mm (a little over an inch). Amulet Charm is made with Handcrafted Engraving and Looks absolutely Amazing. Ready to Wear with Very Popular Cotton Waxed Adjustable Cord which adjusts from 16 inches up to 24 inches long and may be worn Short or Long. Comes with Gift Style Packaging.