3" Trackball Lot x 3 (Orange, Blue and Red)

Lot of three, 3" trackballs in Orange, Red and Blue that were never used. We purchased these years ago from Happ Controls for restoration projects (likely Marble Madness and Crystal Castles games).  They have been sitting in a bin since then. The red one has some lighter wear, but none of these were used and would be great for a restorations. Listing is for the three balls as shown.

See photo for more details.