Our South Dakota colorful state magnet measures approximately 6 square inches and has a thickness of 0.1. This Classic South Dakota Colorful State Map Magnet is perfect for any refrigerator or metal surface and makes a great gift or souvenir! Like all of our refrigerator magnets, this South Dakota souvenir is made of flexible molded rubber and is extremely durable. Plus, all of our magnets are 100% made in the USA.