The chalk mines set is suitable to trace, write and mark on almost all surfaces. It is perfect for manual work and leisure such as sewing, patchwork, DIY and construction of models. Only precise line markings, but also point markings can be performed quickly and precisely with the Rechargeable mine door. A button with a mine to erase is at the upper end of the mine door whose restraint mechanism changes the mine if it is pressed. 8 white mines and 8 colored mines, a trial of chalk and a size -I special acray for chalk mines are included. The mine door is already provided with a white mine. The mines are economical and wrapped in a secure manner for transport. Chalk trial with mine to erase8 white chalk mines and 8 chalk mines in color.