HABA Marble Run Kullerbu Traffic Jam, Ball Track Building Sets for Toddlers 2+

STEM LEARNING FUN:This marble run for kids ages 3-5 features a traffic jam ball collector and domino action, sparking problem-solving and creativity while offering dynamic STEM toy play. EXCITING MARBLE MAZE ACTION: Watch as balls race down the momentum track, hit a stop, and release together into twists, turns, and dominoes. A fun ball run that keeps toddlers engaged for hours! PREMIUM QUALITY & DESIGN: Made from durable beech wood and ABS plastic, this building toy offers long-lasting play. A top gift for 4 year olds, designed to expand with other Kullerbu sets. EDUCATIONAL & INTERACTIVE: This marble track develops hand-eye coordination, problem-solving, and STEM learning through play. A Montessori toy for 3 year olds that blends fun and learning! INCLUDES: ball collector, 1 hopper, 1 swing ramp, 6 dominoes, 3 balls, plus curves, straights, ramps, columns & connectors. Size: 18.5" x 11.81" x 16.93". Balls are 2" wide, perfect for little hands.