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. This exhilarating 50-piece wooden race track for kids three years and up with no fixed assembly required, allows for countless configurations. Join with any other Hape marble set to make fantastic longer tracks!Ready...Set...and Roll! Watch your marbles go racing down a compelling host of surprising tricks and twists, this fantastic playset includes a ring bell, a spiral funnel, a marble tray, and 12 dominoes for your marbles to pass through!● 50-PIECE MARBLE RUN: 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● SURPRISES ALONG THE WAY: 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 with the Crazy Rollers Stack Track that allows for countless different configurations to be created. Hape’s marble run sets are all compatible and can be connected together to create larger incredible runs!● STEAM EDUCATIONAL TOY SET: The marble race track 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 TO PLAY WITH: The child-safe paint finish and sturdy wood construction make this a long-lasting toy your child will love for years to come. Perfect for kids three years and up