The list author says: "These are items that I use in my home obstacle course for my autistic son. These items will grow with your child and your typical children (and you) will enjoy them too. There are also some home-safety items that have worked too."
"For work time after the obstacle course is done. The larger sized ones (which you can find on the Little Tikes site) are also great for the obstacle course. This toy is great for any child."
"For work time after the obstacle course is done. This toy is great for any child. All Melissa and Doug toys are great for autistic & typical children."