This green swirl ebonite fountain pen is ready for the bock #6 regular steel nib of your choice (fine-1.1). Almost 5 1/2' in length with cap and 5 without. This pen has a heavier weigh and feel than resin pens. I love the way all the different colors swirl through this piece of ebonite. Ebonite is one of my favorite materials to make fountain pens from, even though special care has to be taken to remove and scratches from shaping. Special grinds and nibs are available at an addition cost. This item is made of green swirl ebonite.