- Medium tip coloring pen with impossible to lose cap. - Cap with a ring to keep them attached to a lace, no more lost caps!. - Original felt in the shape of a tube, which allows it not to roll and to be easily caught. - Triangular non-slip grip zone designed for children's hands. - Anti-drying technology: can stay open for up to 24 hours without drying out. - Medium tip with 1mm stroke. - Ventilated cap, in case of ingestion.