Montessori Object Permanence Box - Ball in Hole

The Object Permanence Box with Tray contains a wooden box with tray and three wooden balls (wood, blue, orange). This toy has never been played with, the balls are still in the original plastic bag. (We had already bought this one when we received another as a gift, and baby has loved playing with the other set since she was around six months.) The box was only opened for the pictures. Note that the box has slight marks from where the address label was placed and where the adhesive has not come off completely; see second-to-last photo.