If you love the ease and elegance of single tube pens, then you'll love the Presimo ™ Fountain pens. The metal cap on the Presimo ™ simply presses on the pen end to post and screws onto the pen nib end to close. The etched pen top and lustrous chrome go well with most wood and acrylic blanks. It's affordably priced and easy to make requiring a single 10mm tube. Ideal for the turner on a budget who's looking to create a higher-end Fountain pen.