Description20 cm. The spiral grooves on the pen allow multiple lines to be written without dipping the pen into the ink, preferably with fountain pen ink.Each glass pen is unique because it is handmadeReviews0 Close 20 cm. The spiral grooves on the pen allow multiple lines to be written without dipping the pen into the ink, preferably with fountain pen ink.Each glass pen is unique because it is handmade Write a review There are no reviews yet