Measures 4.5 x 6.5 inches. Contains the necessary information from the basic TFH classes – all tests, muscles and corrections. For any therapist making house,hospital, or business calls to do balancing this folio is a must. For the lay person getting help from a family member or friend this folio can be most useful in the home where there is not room for charts on the wall. The small format will fit into a clinic jacket, or coat pocket, purse, or your date book. It¹s perfect for travel and as a resource when you want to be able to travel as light as possible.