3D ballparks can be used to replace the cardstock ones that come with the game and season releases. They are printed with a material called "PLA," which is a plastic derived from corn.
The models are modular, with a universal platform over which a ballpark "fence" is placed between two sets of tabs. The 7.5" x 7.5" platform is used for all models, and includes information for depths and lanes through d20 rolls of 10.
Ballpark fence models include further information for each park, including depths from d20 rolls 11 and up and lane ranges. They vary in height depending upon the actual height of the ballpark fences (a scale of 1mm = 1foot is used for height).
When ordering, be sure to add a "platform" if you don't already have a copy.
Ballparks are sold individually and also include a Buy 4 - Get 1 Free discount (applied automatically at checkout). You can also buy a complete set (e.g., "All Current Parks") at a substantial discount.
Ballparks of the Past are available with "grass green" bases by default, but can be used with any of the platforms available. Changes to the base color are available by request.
All of the Ballparks of the Past orders that include a platform come with some "amenities," including light standards and flagpoles. Some parks also include unique amenities, such as Comiskey Park's "Exploding" Scoreboard. Others may include additional amenities in the future.
Models may differ somewhat from the photos shown depending upon the availability of certain PLA colors and textures. Some orders may take some extra time to be completed, as pieces are printed on an as-ordered basis.
The date range for each park is meant to provide information as for when the configuration of the park was valid, and not meant to indicate when the park existed. For example, "SF 1960-1960" holds the configuration for San Francisco's park during the 1960 season, after which the configuration was changed. "CHA 1950-1968" indicates that the configuration for the Chicago White Sox was used from 1950-1968.