This motorised GBC Harp Track marble run delivers engineering excellence with 1508 precision-engineered pieces. The innovative harp track mechanism creates mesmerising marble pathways, while the integrated motor system ensures continuous, reliable operation. Perfect for builders aged 14+, this set combines mechanical complexity with visual appeal, offering hours of creative construction and dynamic play. Watch marbles navigate intricate loops and spirals as they descend through your custom-designed track configuration. An ideal choice for those seeking sophisticated building challenges and captivating kinetic entertainment.