Super Fun Marble Run by Fat Brain Toys. Recommended for ages 4 years and up. Gigantic Creative-Building Marble Run. Encourages Fine Motor Skills, Logic, Creative Play. Kids Have A Blast Coming Up With New Ways for the Marbles To Roll. Build Tall Towers That Twist and Loop in Endless Combinations. Brilliantly Colorful Pieces - Please the Eye No Matter How You Build. Tracks Feature A Vortex, Topsy-Turvy Trails, Loop the Loop, and More. Features Bell Piece - Rings When Marble Hits It While Rolling Along Track. Features 2 Kinds of Marble-Catcher Stands. Includes 103 Track and Building Pieces, 12 Marbles. Highly Durable Construction for Reliable Marble-Run Actio. Building & Construction.