Chalks for school use, in stick form with dimensions of 12x12 mm. It has good writing properties, does not crumble, and does not leave residue when erased. Manufactured according to European Safety Standards within the European Union.

• Set that includes 12 colors in a cardboard box.
• Break-resistant, very easy to erase from the board.
• Made from natural and harmless minerals, suitable for everyone regardless of age.