Decoders are information wheels designed to present maximum information in an easily understood, clear format.
They usually involve a number of turning wheels on which the information has been organized in such a way as to allow rapid access & instant recognition. The information density makes each decoder equivalent to a substantial book. The decoders are made from durable materials and are protection coated. When folded, they measure 6" x 6" (15cm x 15cm). They unfold to a full size of 18" x 6" (three panels).
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