fisher price stacking action blocks dhw15 en gbThe fun really stacks up for baby with the Fisher Price Stacking Action Blocks. Each building block offers your baby 4 sides of play: letters, numbers, peek a boo play and a fun action. The blue blocks fun action is a rolling drum, the red blocks is a spinning wheel with beads trapped inside, and the yellow blocks is a clicking dial. Pressing the buttons on top makes the fun actions happen on each block. Or baby can stack the blocks tall and activate