Finally, an information chart in a smaller format for people who do not have the wall space for a larger chart. Each chart is 6-3/8" X 9-3/8" and printed on both sides to offer the same amount of information as the larger charts. Each chart is printed on heavy, durable stock and is coated on both sides for long-lasting wear. Can be wiped with a damp cloth if necessary. Available in 20 different subjects containing information relating to the matching decoders. A quick and easy reference.