The Acupuncture poster measures 36" X 36" and has heavy lamination . You have to see the chart to appreciate the details. Purchase with confidence, your satisfaction is guaranteed. The chart features exceptional medical illustrations by Medical Arts Studio with precise detail to enable precision point location. The channels are rendered in the color of of their element and yin yang designation allowing for instant recognition. For example the liver channel is dark green and the Gall bladder channel is light green. Fire, Earth, Metal, Water and Wood points are depicted in their element color. Front mu and back shu points are also color coded. Luo points, yuan points, and xi cleft points are symbol coded. The horrary points are depicted as analog clocks with their most active time described by the clock hands. The internal connections and the continuous circulatory system of the channels are illustrated in individual boxes on the side and bottom of the chart. A truly wonderful and practical chart that is used all over the world.