LEGO Ed. Part Switch
When I received my Education Resource Set, it included this wheel--which also appears on the cover of the box. I used four of these as feet for my camel in the ZOO book. Now, I've discovered that LEGO Ed is not including this wheel, but is, instead, including the wheel that is already in the base kits. Message to LEGO: If you must choose one wheel hub for all things, let it be this one. It offers many more creative building options.