Sigma Gamma Rho Sorority Auto Accessories. Premium Heavy-Duty Auto Magnet Featuring the Official Sigma Gamma Rho Greek Letters in Bold Blue With a Clean Gold Outline. Engineered With a Strong Magnetic Backing That Secures Firmly to Vehicle Metallic Surfaces Without Damaging Paint or Leaving Adhesive Residue. Easily Removable, Reusable, and Weather-Resistant to Withstand Highway Speeds, Sun, and Rain.