An Acorn favorite, this genius marble run by Cuboro consists of 54 cubed elements with interior tunnels and symmetrically defined functions on the surface. The various blocks can be combined to create a myriad of track systems, ranging from simple to complex. A wonderful way to challenge children and engage them in different mathematical concepts in a fun, interactive way. 

• 54 Beechwood blocks
• Made in Switzerland
• 2" x 2" x 2" cubes
• Ages 5+