Protech in Big sale
A copy of the workbook is included in every purchase
Great replacement of Perfect seriesAs combinations between gear capsules with various functions are changed, it enables the user to observe how the turning force and directional nature are changed and also to experience the process of how the solar heat is converted to electric energy.
All of IQ-Key’s parts are made of non-poisonous material including Polycarbonate, the material used in baby nursing bottles. (Certified by ASTM, CPSIA, EN71, CCC)