Gravitas Monster Grade 5 Titanium Tisinx Fountain Pen
Disclaimer! - the combination of the curvy shape, weight and the lack of the clip makes this pen to easy roll off the table/desk or slip off the pocket while in carry, the result of such unfortunate events can be a pen barrel cracked and/or split where the clear acrylic meets the metal edge. Such unfortunate accidents are not covered by warranty!

Don’t let the name fool you, Monster isn’t some oversized, unwieldy fountain pen. In fact, it’s built on the well-proportioned shape of the original Vac, a design that won our writing instruments enthusiasts. Every line, curve, and contour of the Monster has been deliberately refined. From its silhouette to its balance, this fountain pen is the result of obsessive attention to proportion and purpose.

The exceptional writing experience of the Monster now welcomes Grade 5 Titanium in the line up of materials - TiSiNx coated (titanium silicone nitride) - a tough and wear resistant finish it increases the surface hardness and reduces friction while offering an attractive blue finish while keeping the raw exposed metal feel and paired with the Optical Grade Acrylic barrel. The result? A writing instrument that feels substantial yet balanced and robust. The Monster is featuring an inner Delrin cap sleeve which allows for a smooth posting and a smooth feel in capping and uncapping.

At the heart of this creation lies the Kraken Filling System, a revolutionary filling mechanism inspired by mechanical heart valves. Designed by Ben Walsh, this filling system is new to anything else in the industry. While researching shut-off valves for retractable pens, Ben turned to medical devices for answers. What he found was a beautifully simple yet highly effective sealing solution. That concept evolved into the Kraken Filling System, a system that’s closer to a mechanical heart valve than a traditional Vacuumatic filling system. What makes the Kraken Filling System brilliant are the following :
- efficient design that gives the Monster a outstanding 7ml ink capacity at full load
- use of specialised quad ring (specifically made for sealing and due to its shape it retains lubricant in between points of contact ensuring constant lubrication and improved seal) 
- due to its precision machining the system offers high efficiency in filling translating to a large volume of ink even with a single plunge 

This isn’t just a fountain pen. It’s an engineering statement, a seamless fusion of elegance, utility, and biomechanical ingenuity.