Faber Castell AMBITION RHOMBUS CollectionEngraved Black Resin Faber Castell's Ambition line of writing instruments is distinguished by slim, clean lines and creative materials. The Rhombus collection features a deeply engraved rhombus pattern in glossy black resin. Ballpoint Pen Twist mechanism retractable point Measures 5" long Includes one black refill Order ballpoint refills for this pen here: Faber Castell Ballpoint Ink Refill Rollerball Pen Chrome cap snaps on securely Capped length: 5.