Plan City toys let your children build a city of imagination, made up of objects that stimulate creative thinking and visualization. In Plan City your children will learn about social environment, occupations and how various professionals interact with one another. Plan City offers opportunities for group play, where children can develop social relations and leader-follower skills. Plan City toys are made from replenishable rubberwood processed naturally and free from any wood preservatives. Plan City wooden train items are BRIO compatible and work with other major wooden train systems.