Chalk marker for non-permanent design, decoration and labelling of closed surfaces, e.g. windows, dark boards, glass, plexiglas® and mirrors. Well-covering, odourless, water-based liquid chalk. Can be wiped off with a damp cloth from almost all closed surfaces. Round tip. White plastic shaft with plastic cap in writing colour. Line width: 1 - 2 mm. Writing colour: pastel yellow, pastel green, pastel pink, pastel blue.