Pertra helps to train the sensorimotor system, visual perception etc.
For education and therapy
Sits comfortably in the hand
For use with the Pertra system sandbox. Complete with 10 steel ball bearings.
Only customers who have bought the item from us and have received a review invitation can write product reviews.
As the author of a review, you help other customers learn more about the product and its use.
As a reader of a review, it can help you decide if it is the right product for you.