A set of colourful gears and gears that allow you to construct complex mechanisms. The toy is mounted on the Masterkidz STEM Workshop Board with the help of special Masterkidz screws. Playing with gears improves a child's motor skills, logical thinking ability, as well as creativity - 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 Masterkidz children's tools The set includes:  - 1 gears with crank.  - 4 large gears with 16 teeth.  - 8 colored gears with 12 teeth.  - 4 colored cogs with 6 teeth.  - Adjustable length chain.  - Chain for creating movable structures.  - 34 screws in different sizes.  - 20 screw nuts.  - 2 gear washers in different.  - A set for building a ball track consisting of 35 elements.  - Tower. Attention! It is a set of accessories for boards or tables. The presented boards or tables in the illustrative photos are available for purchase separately. The set fits ME29591 and ME29584 products