This pack of 36 Fibre Tip Pens from Staedtler have a double ended design, the smaller nib has a line width of 1mm for more detailed work and the larger has a 3mm line width. These pens use water-based ink that is made from food colouring dyes to make marks. Thanks to this special formulation, stains can easily be removed from the majority of textiles making them great for children and general use. They are ideal for sketching, drawing, illustrating, writing, colouring and writing on walls. - Brand: Staedtler - Pack of 36 - Assorted colours - Double ended fibre tip pens - 1mm and 3mm nibs - Water-based ink