Artline 541TB whiteboard marker features dense bold colours, Artline's high performance range of whiteboard markers are the perfect addition to meetings, classes and tutorials | 2 nibs in one marker for versatility and convenience | Choose from 0.1mm or 0.4mm bullet nibs | Common ink reservoir so one nib will not dry out before the other | Ideal for use with enamel, porcelain or melamine surfaced boards | Dual nib whiteboard pen | Pigment based ink for bold colours | Low odour alcohol based ink | Dense bold colours