LEGO Duplo number blocks collection includes a colorful variety of stacking bricks featuring large, easy-to-read digits 1 and 3 through 7, and smaller 1-3 blocks. These educational building blocks are designed for small hands, helping toddlers develop fine motor skills while learning basic counting and number recognition. The set includes two stacks of multi-colored bricks in shades of red, orange, yellow, green, and blue. Note that the yellow "2" block has a visible vertical crack on the side as shown in the photos. These durable, oversized pieces are compatible with other LEGO Duplo sets for expanded creative play.