Coal Grey (with gunmetal trim): This shade exudes understated elegance, blending cool, industrial tones with a sleek matte finish. The gray evokes a sense of modern sophistication, perfectly complemented by the gunmetal accents that add depth and subtle luxury to the overall design.

The ultimate piston fountain pen:
The MP1 is the first internal piston fountain pen ever produced by Monteverde USA. Released as part of Monteverde's 25th-anniversary celebration, the MP1 represents a significant leap forward for fountain pens in its class. Featuring innovative Lock-It piston technology that tightly secures the piston knob between fillings, the MP1 is distinguished by its durable anodized aluminum cap and radiant crystal-clear barrel. Fitted with a German-made #6 JoWo nib, each pen delivers consistent, reliable ink flow regardless of your writing speed or style.

Key features:
Lock-it piston technology.
Durable anodized aluminum cap with elegant etched lines.
Finely crafted #6 German Jowo nib for precision and smooth writing.
Plasma-treated feed system for consistent ink flow, preventing skips and blots.
Seamless transparent barrel and grip for sleek design and smooth comfort.

Fountain pen body: Polycarbinated resin
Fountain pen cap: Aluminum
Cap's closure: Threaded
Dimensions: Cap closed 144 mm / Without cap 135 mm / Cap posted 176 mm / Diameter 12.5 mm / Weight 25.5 g
Nib material: #6 Jowo stainless steel

Go have a look in the 'Specifications' section below at the PDF file to see how to fill the MP1 fountain pen.