Taiji Diagram (Flash Projector): A red dot falls from top to bottom on exhalation. A blue dot rises from bottom to top on inhalation. A soft Tibetan bell chimes with each change. Movement also demonstrates blood flow, oxygenated blood flowing from chest to extremities coincident with exhalation and venous blood flowing from extremities to chest coincident with inhalation. This audio visual product is a self contained Flash application and does not require Flash Player. (Continuous Play). File Size: ~1MB. Price: $14.95 (Plus sales tax - Texas residents only.)