Build the towers and tracks then send your marbles rolling down through all the tricks, twists and surprises with this Hape Marble Run: Crazy DIY Wood Building Racetrack. FEATURES: DIY: This do-it-yourself marble block set features all the thrills of marble speed racing with its unique configurations. Includes blocks, tracks, marbles, and everything needed to create this fun track., ROLL your marbles down a compelling host of surprising tricks and twists, this fantastic playset includes a ringing bell, a spiral funnel, a marble tray, and 12 dominoes for your marbles to pass-through., ENDLESS POSSIBILITIES: With no fixed assembly required, let your little one's imagination run free! Countless configurations to be created. Hape's marble run sets are all compatible and can be connected together to create larger incredible runs!, MARBLE RACETRACK provides a fun way of introducing children to physics principles such as potential energy, momentum, and gravity. Building the towers and tracks will improve your child's hand-eye coordination, logical thinking skills, problem–solving abilities, and inspires creativity., SAFE: The child-safe paint finish and sturdy wood construction make this a long-lasting toy your child will love for years to come. WHAT'S INCLUDED: 50 Pieces. DETAILS: Age: 3 years & up, Some assembly required, Wipe clean, 13.78 x 13.78 x 9.45 inches, Plastic, E1102, Imported. Size: One Size. Color: Multi. Gender: unisex. Age Group: kids. Material: NONE.