An Acorn favorite, this fantastic marble run by Cuboro consists of 40 wooden elements with interior tunnels and symmetrically defined functions on the surface. The rails and cubes can be combined to create a myriad of track systems, ranging from simple to complex. This smart starter set can also be combined with other Cuboro sets to create more elaborate arrangements. A wonderful way to challenge children and engage them in different mathematical concepts in a fun, interactive way.  

• 40 beechwood blocks, 6 marbles
• Made in Switzerland
• Box: 8.66" x 8.66" x 4.33" 
• Ages 3+