The "Gears" set is a developmental aid that combines wooden removable dynamic gears of different shapes, colours and sizes to learn the mechanism of gears with external gearing and frame inserts for matching the shape, colour and size of the parts with recesses for them, placed on the gears themselves. These recesses are round, square, triangular, hexagonal and pentagonal star shaped.
In addition, the parts placed in the recesses, can move with the gears when they move clockwise and anti-clockwise.
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