Electric friction tyre with ergonomic design.
In the pack you will find: - 1 electric tire for friction; - 7 white erasers; - 4 blue abrasive erasers; - 2 power batteries AAA 1.5V.
Instructions for use: press the button, then gently press the rubber on the area that will be treated. Note that the too strong pressure will stop the rotation of the tyre on the sheet.
Product color: blue. 
