Perfect gift for Children to inspire their intelligence and improve hands-on ability.
Material: Wooden
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 top of the columns, the ball will roll down to the chassis from the color chips

NOTE: under adult supervision, because there are two small balls.
There might be slightly difference in color, because of the computer monitor setting;
With the difference in the measurement method please allow 0.5 cm in size deciation.