Description The Monteverde MP1 Coal Grey fountain pen is the first Monteverde fountain pen with an internal piston filling system, and features a body of crystal clear acrylic, an anodized aluminum cap and turning knob in dark matte grey, a black plated clip and trim with a smooth-writing stainless steel #6 Jowo nib. To fill this new pen, pull the piston knob away from the pen body to unlock, turn it counter clockwise to move the piston filler, turn the knob clockwise to fill the pen, and align the 2 dots then push down to lock the piston. Please note that some colors and sizes may ship in 7- 10 days. We offer Free Shipping on all orders over $59 for US customers, and for orders over $250 for our Canadian customers.