The rectangular base panel is supplied together with metal cylinders that can be inserted freely into the thirty holes arranged in the base.
It's devised for hand-eye coordination, to improve dexterity and/or use the correct strength when inserting things. It can also be used to weave coloured ribbons or elastic bands through the cylinders.
It is to practise accuracy with movements and the strength required to either extract the cylinders or push them into the holes.
The standard set-up for the exercise aid can be subsequently integrated with other similar or different components from the available choice of accessories.