Welcome to the Anderson Pens Nib Comparison Tool! Here you can compare line widths between many common fountain pens to see what will suit you best. All nib cards were written using the filled pen with Aurora Black ink on the same card stock. Select from the long list of nibs, or choose between nibs of a particular types (all Fine nibs, for example), or nibs of a particular brand. Want to email a friend a list, you can do that too! You can click and drag nib cards around to order as you choose. New nibs will be added regularly, so if you don't see the one you are looking for, it may appear at a later time.