Distinctive tip and the twist head are made of brass and give this writing instrument its special character. The black barrel is made of lacquered aluminum that has been sandblasted, which provides a slightly grainy, matt surface with a pleasant grip. The logo on the mid-section stands out discreetly against the glossy black lacquer background. The lightning bolt engraved on the twist head is the distinctive mark of the international Bullet Journal® community.• Gel pen made from precision-milled aluminium and brass • Stroke size 0.5 mm • Black ink • Refillable