Opportunity Knox Indutries,Inc. serves law enforcement pofessionals by providing high-quality, 14-karat gold, industry-specific charms. Opportunity Knox offers in miniature: universal police badges that can be personalized with the department, state, rank and badge number; U.S. Marshal and sheriff stars; custom-made individual department badges from many areas of the country; and religious and novelty charms. Discounts are available for volume orders.