The National Parks spinner / volvelle is 6.75" and illustrates 12 parks from all over the US. Learn about where they are, how big they are, and when they were established, as well as key features and wildlife. The included parks are:Grand Canyon, Denali, Arches, Yosemite, Everglades, Grand Teton, Olympic, Great Smoky Mountains, Acadia, Glacier, Rocky Mountain, and, of course, Yellowstone!