Catholic - 28 MM St. Benedict Medal + Solid 7MM Rolo Chain Necklace with Mariner Clasp 28 MM = 1.1 Inches St. Benedict Medal (Medalla San benito). Double Faced Engraved 7mm Wide Rolo Chain Necklace With Mariner Clasp (Wide Chain) Length: 18 Inches = 45 Cm. We have available also 20", 22",24",28",30" Just write us an email once you place the order and let us know which length you need Gorgeous Religious Necklace Important Set. Perfect for a Gorgeous Gift. Same day tracking number