TWSBI Diamond 50 Ink Bottle - 50 ml - Polished Aluminum

TWSBI Diamond 50 Ink Bottle — Polished Aluminum (50 ml) A faceted glass inkwell with a polished anodized aluminum cap. The polished aluminum version is the upgraded finish on the standard Diamond 50 bottle, which otherwise ships with a black plastic top. Works with any bottled fountain pen ink and any pen, with extra functionality for TWSBI's piston-filler line. What makes it special Two-part cap: the lower section unscrews for normal bottle filling; the upper section threads directly onto TWSBI Diamond, Classic, and Mini sections so you can fill the pen without dipping the nib Internal removable reservoir — flip the bottle (cap on) to load a metered amount of ink, useful when the bottle runs low Polished anodized aluminum cap upgrade over the standard black plastic version Adapter also fits standard international converters Specs Capacity: 50 ml Material: Glass body, anodized aluminum cap Finish: Polished TWSBI pen compatibility: Diamond 580 / 580AL / 580ALR / 540 / 530, Classic, Mini General compatibility: Any fountain pen ink, any bottle-fill pen (with the adapter removed) Ink: Not included Please note: TWSBI products are not eligible for discounts.