wooden tree ball marble run track game baby kids children montessori early educational toy marble run toys building blocks

perfect gift for children to inspire their intelligence and improve hands-on ability. material:wooden color:as the picture shows. quantity:1 * chassis,1 * column,2 * small ball,16 * color chips total height:21cm/8.2" chassis size:8cm*8cm/3.1"*3.1" column size:2cm*2cm*19.5cm/0.7"*0.7"*7.6" ball diameter:1.5cm/0.6" put the little on the of the columns, the ball will roll down to the chassis from the color chips note: