The instructions are clear, but you need to apply the correct force not to break the pieces. If parents supervise the process or work together with their child, it is possible.

The code is set up during the assembly. The instruction provides you with three sample codes or you can set one up of your own choice. Once set and fully assembled, the code cannot be changed.

You blow on or spin the top gear and watch the other gears spin round. It is basically an educational model that demonstrates how gears work. It is fun to put together and showcase to your friends and family.

The axles are standard round toothpicks. If one breaks during the assembly or exploitation process, just replace it with a new one.

Candle wax may be applied to lubricate the axle and make it fit easier.

All the models are made of ecological plywood.

No. All the parts are pre-cut and can be easily taken out of a board by pressing lightly with your fingers. The parts stay in place on a board, connected by small cross pieces. If you experience difficulties removing a part off the board, simply use a cardboard box opener to detach it.

In order to avoid furrows, you should press the detail out from the side, where pattern of lines is thicker. We recommend to check all elements, especially gears, for the absence of burrs on the teeth. To safely release a part from the board and avoid any potential damage to it, gently press your fingers about the indicated lines. For the best assembly results and to ensure the correct fit we recommend checking each detail for flaws and removing imperfections using the finest grit sandpaper. If connecting of certain parts appears difficult, try using household wax candle to lubricate the parts.

Yes, you can paint it. We recommend using watercolor, gouache or mordant types of paint. You can use acrylic paints as well, however, the density may prevent gears from moving freely.

The plug or the axle will be much easier to install if you grease the parts with an ordinary candle. If you can't install the axle, it is recommended to disassemble the construction and grease the internal parts of a gear with a candle wax. Also, you can try different toothpicks as they also vary in thickness and sizes. Do not use too much force as there's a risk of breaking the toothpick.

Everything you need for the assembly comes in the package. There are wooden axis (standard toothpick 65 * 2 mm) in each set. Depending on the specific model, rubber bands, fishing line, or stickers will also be provided.

Extra toothpicks are available at any grocery store.

Tools recommended for the assembly: office knife, ordinary candle (i.e. tea candle), fine sand paper or file.

Most models are suitable for children 14 years old and older. For certain models, your child may need additional parental assistance. Our mission is to unite children and their parents, while having good old-fashioned fun working with your hands and using your imagination.