Description The Esterbrook 668 Oval Point Dip Pen Nib is slightly tapered, and features a sharp point with an upturned tip. It features a rectangular vent hole, T-shaped slits at the shoulders, and was designed for writing. Dip pen nibs are sold separately from a nib holder, which is usually called a dip pen. We offer Free Shipping on all orders over $59 for US customers, and for orders over $250 for our Canadian customers.