Our golf ball marker coin is 1.75 inches and is made of fully cast metal with expertly enameled team colors. The Michigan St. Spartans logo on the front and the back has a removable ball marker that is held in place with magnets that also features the team logo. Officially licensed College product Fully cast metal with enameled team colors 1.75 inches round coin Coin features a removable ball marker held in place by magnets A great way to take your love of Michigan St. Spartans out on the greens