Faber Castell Loom Rollerball Pen - Metallic Grey. Featuring a grip section with fine rings and a subtly curved form, LOOM writing implements are varied and fascinating. They are characterised by luminous colors and an puristic elegance. The modern trio, consisting of a twist ballpoint pen, rollerball pen and fountain pen, captivates with a conical shape and the high-contrast interplay of matt and gloss effects.