Pack of 4 dry wipe 3mm bullet tip pens for whiteboards, designed for glass surfaces, safe for use on magnetic glass whiteboards and glass dry erase boards Whiteboard pens with 3mm bullet tip, with easy flow for bold clear colour and smooth lines, with reservoir window to check ink levels so you never run out at a crucial moment Glass whiteboard markers, the ideal pens for glass dry wipe surfaces to write on at home, at school or in the office Long lasting fast-drying liquid ink pens, with superior ink lay down, available in a choice of colours; great for presentations, meetings and creative brainstorming Content: Set of 4 x Nobo Liquid Ink Glass Whiteboard Pens, with 3mm Bullet Tip, Dimensions: (W x H x D): 160 x 17 x 165 mm, 72g, Black, 1905322