Noodler's Ink Standard Flex Fountain Pen with Twist-Fill Piston, Stainless Steel Nib, Ivory Darkness (17055) Genuine Noodlers Branded Quality Stainless Steel Flex Nib Fountain Pen Black/White Grain Body & Cap Piston Filling System for Bottled Ink Windowed Ink Compartment - Celluloid Fountain Pen