Mega Bloks train-themed building bricks with two Thomas the Tank Engine figures and other assorted pieces. These pieces are from multiple sets with no complete sets, but are a fun addition to other Megabloks with lots of potential for imaginative play. The trains fit on the ferris wheel with little gates that hold them in place. These bricks are the same size as Duplo and generally compatible. Please note that the trains come apart into small pieces, so these are not suitable for babies. GUC; these were used on a concrete patio and have some surface scratching and general signs of play.