A new concept in mathematical learning is now available with the Wonderworld Counting Ball. The Wonderworld Counting Ball is a manual numbers discovery toy that encourages learning the dynamics of subtraction and addition through the use of five colored balls, a knob and a lever. Equipped with an upper and lower level, the Wonderworld Counting Ball works by either hitting the lever to bring a ball up to add to the upper level or twisting the knob to subtract and bring a ball down to the lower level. The Wonderworld Counting Ball opens the door to learning in a fun and exciting way that is sure to keep your child entertained for hours. 

Product : 8 x 30 x 16 cm. 

Age : 2 – 6 years old.