The Staedtler Lumocolor 301 whiteboard marker has a pen format and is therefore ideal for small whiteboards. This whiteboard marker is also suitable for glass and porcelain surfaces. The marker has a writing width of 1mm. The markers dry quickly and are virtually odourless. You can easily remove the ink with a whiteboard eraser. Forgot the cap? No problem. You can leave it off for 8 hours without the marker drying out. This set contains 4 markers in black, blue, green and red.