Match and sort these 25 colorful wooden pieces, and skill-building is just part of the fun. Rings, octagons, and rectangles can be slotted onto the three rods, stacked on top of each other, or lined up to compare shapes, sizes, and colors. This first-concepts set is a manipulatives all-star! Parents and other grown-ups can help their youngsters develop strong skills by playing several games, such as removing the stacking pieces from the rods and placing them on a flat surface, and helping kids name the colors of the pieces. When they are familiar with all the colors, have them to sort the pieces by color and count the pieces in each group. Additionally, mix all the pieces together and have kids sort the pieces according to shape. This Geometric Stacker is an exceptional gift for kids ages 2 to 4 years. Add the Melissa and Doug Shape Sorting Cube to round out the hands-on, screen-free play experience. For more than 30 years, Melissa and Doug has created beautifully-designed imagination- and creativity-sparking products that NBC News called “the gold standard in early childhood play.” We design every toy to the highest-quality standards, and to nurture minds and hearts. If your child is not inspired, give us a call and we'll make it right. Our phone number is on every product! Gender: unisex.