The 25mm Set contains a total of 4 movement trays: 2x Row-of-5, and 2x Blob-of-5
The 32mm Set contains a total of 3 movement trays: 1x Row-of-5, 1x Blob-of-5, and 1x Blob-of-6.
Each socket will perfectly fit 1 base. Bases are spaced about 20mm (0.79") apart at their closest point.