A set of colourful gears and gears that allow you to construct complex mechanisms. The toy is mounted on the Masterkidz STEM Science and Creative Board with the help of special Masterkidz screws. Playing with gears improves the child's motor skills, logical thinking ability, as well as creativity. Characteristics: - Children love gears and mechanisms. They are fascinating - they rotate, interlock. They work as one organism. Observing such mechanisms gives a lot of satisfaction and fun. - A set of Masterkidz gears and cogs is used for mounting in their specialized Masterkidz STEM system. Screw each desired element to the educational wall with special screws adapted to children's tools from Masterkidz The set consists of 79 elements: - 2 gears with a crank - 12 large gears with 12 teeth - 24 colored cogs with 6 teeth - a chain with adjustable length - 20 screws - 20 pins (pins)