One of the heaviest woods in the world, cleverly crafted to have the perfect weight, will take you on a journey through the Sonoran Desert. It has the graceful look of a beautiful dark tree but the strength of a piece of iron. A Manhattan pen is simplistic, yet in a stunningly beautiful way. it is an everyday kind of pen. Refill instructions: Twist top clockwise until it comes off. Then you have access to the ink cartage.