Staedtler Lumocolor whiteboard markers can be left uncapped for days without drying out. Fast drying, low odour, alcohol-based ink ensures your work is impressive and bold, while still able to be erased from whiteboards and surfaces like glass and porcelain without leaving a trace. The Lumocolor 351 whiteboard markers have a bullet tip with a line width of approximately 2mm. This whiteboard marker is blue. For convenience of ordering a box this marker, the default quantity has been set to 10.