U7 Abacus Pendant 18K Gold Plated/Stainless Steel Men Women Necklace, 22 Inch Chain Cute abacus design. Pendant: 1.6 inches. Material: 18k gold plated/stainless steel. Chain:3mm wide, 22 inches long wheat chain. Nickel free. Come with U7 design gift box. 90-day money back guarantee or exchange.