Bronze displays an earthy, warm color similar to brass. Natural bronze hook-and-eye clasps by Nina Designs will tarnish over time. You can add a patina to them if you want a distressed look right away, or you can polish them after time to keep them bright and shiny. The antiqued bronze S hook already comes with a distressed finish. It has a strong pewter core underneath the plating and works great for heavier necklaces.