There's videos of Drums Alive if you google it. You drum on the stabily balls, your own and your neighbors. You move around the balls. There's a lot of work with you legs especially thighs and it's suppose use both right and left brain. I don't understand all of that, but it's suppose to good for any type of handicapped person as well as people who want to get fit. My Zumba instructor just got certified in Drums Alive and she's very excited about it. All equipment is supplied by the instructor.