Creotime calligraphy pens With these high quality markers you can create the most beautiful calligraphy artworks. The four pins each have a different thickness and can therefore be used for different purposes. The markers can easily be washed out if you accidentally draw on your clothes. Specifications: Gender: unisex Colour: black Material: plastic Thickness pins: 1.4 mm, 2.5 mm, 3.6 mm, 4.8 mm Age: from 12 years old Content 4 Different thicknesses of markers