Asvine V126 Vacuum Filling Fountain Pen Extra Fine Nib, Blue Swirl Acrylic, 148mm (5.8in) | Smooth Ink Flow for Daily Writing

• Vacuum System-The pen's built-in vacuum filling system holds far more ink than a cartridge and lets you draw ink straight from the bottle, no converter required!
• Easy Filling- Simply untwist the end cap, pull up the piston rod then push down, ink is filled. To ensure the ink flow consistently, unscrew the blind cap all the way when you are writing.
• Classic Design-The V126 features a modern, eye-catching design, with a transparent body that shows off the pen's inner workings.
• Smooth Writer-- The extra fine nib was made of PVD coated black nib which ensures you have a smooth writing experience.
• Premium Acrylic- The pen was made of premium acrylic for long-term of use. It was equipped with comfort grip for your long-time writing.

• Prepare for Filling — Unscrew the blind cap at the end of the pen completely. Then, pull the piston rod upwards until it stops. This readies the vacuum mechanism to draw ink.
• Fill with Ink — Submerge the pen nib into your bottled ink. Push the piston rod down firmly and smoothly. This action creates a vacuum that draws ink into the pen's reservoir.
• Write Smoothly — Once filled, screw the blind cap back on. Ensure the blind cap is fully unscrewed while writing to maintain consistent ink flow. Enjoy the smooth writing experience of the extra-fine nib.

Typical situations where Asvine V126 Vacuum Filling Fountain Pen Extra Fine Nib helps — illustrative scenarios, not customer reviews.