Iq key is an educational toy which assemble the capsules and blocks of various functions by a patented combination mechanisms. Using over 40 kinds of various shaped components, scientific principles and phenomena can easily be understood through the use of a game. IQ KEY is an educational toy which assemble the capsule and block of carious functions Battery and wire switch operation with assembly of the gear capsule and block Children can learn the principles of science while paying IQ KEY Differentiated from the play-oriented assembly toys Manufacturer exclusivity in US