BallQube Grandstand Baseball Display BallQube invented and patented this deluxe square baseball display case featuring a built-in ball cradle BallQube designed this case to securely display a baseball meeting the specifications of the Official Major League Baseball (between 9 and 9.25 circumference You can Lock It on The Sweet Spot with BallQubes design which securely fits up to a 9.25 circumference baseball. Stylized baseball diamond corners provide a stacking mechanism. This is the clear, stackable, MADE in the USA display for your valuable autographed baseball collection. Archival safe Baseball display case Crystal clear