Paulmartstore has been a huge fan of building block system for many years. One of the issues was that my son was able to create these really great designs of his own and want to display them. We used the traditional baseplates but they were incredible flimsy and often times did not stick to the project he made. So I had a manufacture design a plate that fixed the issues that we had. The plates are 12" x 12" size in many different colors. They are also thicker in 2 ways, First, the nodes (studs) are wider to ensure proper attachment to brick and second, actual plate is thicker so make sure it does not break or crack. The sides are notched so different plates can be placed side by side effectively to make large land dioramas.