Originally, medicine wheels were stone structures constructed by a large number of the tribes or nations of indigenous peoples of America for religious, ritual, healing, and teaching purposes. Medicine wheels are still "opened" or inaugurated in Native American spirituality where, by certain tribes or groups, they are referred to as "sacred hoops". There are various native words to describe the ancient forms and types of rock alignments. The most prevalent and used involves the four directions. Because each piece is handmade, the color of the painted centerpiece may vary slightly. The Navajo Medicine Wheel is 6" in diameter. Handmade by Navajo Artisans. From Made in New Mexico. Ships Next Business Day. Satisfaction Guaranteed.