Approximately 5cm in diameter. Major League Baseball: * Chicago Cubs * Los Angeles Dodgers * Baltimore Orioles * Detroit Tigers * Seattle Mariners * Texas Rangers * Philadelphia Phillies * Boston Red Sox * Chicago White Sox * Florida Marlins * Anaheim Angels * Arizona Diamondbacks * New York Mets * Montreal Expos * Princeton Devil Rays Please note that the color of the actual product may differ from the images due to lighting during photography and the environment of the media you are viewing it on. **Product Condition:** Used * Overall, there are scratches, stains, and discoloration due to age. * The keychain string is twisted. * The red string on the Dodgers ball has transferred color, staining the white parts red. * The Mets item has yellowed. The purchase date and frequency of use are unknown. Please understand that this is a used item, and those who are concerned or seek perfection should refrain from purchasing. Although we conduct inspections, there may be oversights or areas not fully captured in the photos. Also, although cleaned, there may be fine scratches or stains remaining due to the item being used. Please check the product condition in the photos and description, and make your purchase only if you are satisfied. **Other:** * Size indications are approximate. There may be slight variations. * As I am not a specialist, I may not be able to answer specialized questions. * Only the items shown in the photos are included. * As it is not possible to describe all functions and conditions, please consider the photos and product comments as a reference. If there is any discrepancy between the photos and the product description, the actual item in the photos takes precedence. If you have any concerns or questions, please ask in the comments section.