4" ball: so useful in so many ways.
John's book - Healing Ancient Wounds A must read!
I prefer the smart roller - available on Amazon Unlike a round roller - your shoulders can relax and your chest can stretch so your back can let go as you lay on it. Use the flat side to you at first - want more challenge - put rounded side to you.
Thomas Hanna - The Myth Of Aging
He has many tapes to explore - great place to start is with the Myth of aging. He also has a book if you like to read.
Trust me - it's hard to find on your own. Now available in downloadable form or you can order the CD's. Once on site - you can look around at his other tapes. His book is available there or on Amazon.