The Faber Castell Essentio is a fountain pen with a steel nib and aluminum body and section. The aluminum is brushed, what gives it a very gentle and soft feeling. The cap is plastic, what makes it look a bit different than the body, but the color of both matches very nicely. The Essentio fountain pen uses cartridges or a converter (a converter is optional and would need to be ordered separately). In the bottom of the barrel you find a spring. The spring is there to prevent the ink cartridge from moving when you have 2 short international cartridges in your pen.
The metal clip is springy and will attach the pen easily.