220 Pc Marble Run Massive 220 piece marble run set - contains 200 track components and 20 marbles Colorful guidebook gives step-by-step instructions for multiple builds, endless hours of fun Track pieces include rails, tubes, spinners, funnels, carousels, bells, chutes, bases and stair stepper Easy to build, durable plastic Encourages creativity and developmental learning; recommended for Ages 4+