Permanent markers for permanent labeling. Marker with a 1-4 mm round tip, allows for labeling on many different surfaces. Available in Red, Blue, and Black. With an aluminum casing. Ideal for students, pupils, and teachers. Waterproof and permanent. 5 pieces in a sorted cardboard box, 1 x Red, 2 x Blue, and 2 x Black. With Herlitz's waterproof Colli markers, there’s no more smudging. The innovative 1-4 mm round tip of the permanent markers allows for comfortable and secure writing on almost all surfaces. Perfect for all kinds of labeling, wide for thick application on flipcharts.