How do you make the Code-a-Pillar GROW and go With this easy-to-connect, add-on segment that instructs the Code-a-Pillar to move forward 3 feet. Just add this segment anywhere on the Code-a-Pillar to have it move in a way you haven’t seen before! Look for more single, add-on packs or expansion 3-Packs that your preschooler can use to create even more combinations and nearly endless possibilities for the Code-a-Pillar! (Each sold separately and subject to availability.)