Hape Knikkerbaan Supplement set Xylophone

Features • Marble track construction toy made from sustainable wood and non-toxic water-based paint • Includes 2 distribution blocks, 2 stabilizing rings, 8 marbles and a xylophone rail. • The xylophone rail plays as the marbles roll down • German-manufactured design inspired by the Da Vinci Circle • Helps develop spatial thinking and understanding of scientific, technological, architectural, artistic and mathematical (WTBAW) principles • Recommended by The Wall Street Journal as the perfect toy for teaching kids to code • Compatible with all Hape Quadrilla sets • Suitable for ages 4 and up