Colour: Intense black for a clear and visible writing on white and magnetic boards. Point size: 4mm, ideal for precise and well defined strokes. Type of Ink: Clear, allows you to correct or edit text easily with a cloth or rubber. Compatibility : Perfect for use on white and magnetic boards, both in school and professional fields. Versatile Use: Suitable for annotations, drawings, patterns and presentations. Ease of Use: Ergonomic design for comfortable grip and smooth writing. Simple maintenance: Easy to clean without leaving any residue, keeping the board always in order. Packaging : Pennarello sold individually, ready for use (also available in boxes of 12 pcs).