Murano glass dip pen nib, compatible with all Bortoletti pens. Perfect for single line cursive writing and drawing, the nib is able to hold a large amount of calligraphic ink. The Murano glass dip pen nib has been specially designed to be easily replaced in all Bortoletti pens. You have to remove the nib holder clip from the pen and insert the glass one, to give your writing instrument an extremely original touch. The Murano glass nib is made entirely by hand, perfect for writing and drawing.