The Tinkertoy® Transit Building Set is designed to encourage young builders to play and learn. Builders ages 3+ can create a train, garage, bridge and more or accelerate their imagination with other ideas. The colorful guide provides a variety of ideas for all building skill levels. The Tinkertoy® Transit set includes 150 durable, plastic pieces including spools, straight rods, bendable rods, wheels, eyes, two buildable figures and more. Comes in a durable box with lid for easy storage and portability.