This challenging wooden jigsaw stacking toy requires children to arrange the 15 differently shaped pieces on to the 9 pegs layer by layer or in any way they wish. The stacking toy is open ended since children can stack in an organized way or in any way they wish. The colored pieces can also be used to stack on their own or along with blocks. Foster problem solving skills and creativity. Recommended for children 3 years and older--- adults too! Measures 4.5 x 4.5 x 3.5 inches.