Tom's Studio Wren Refillable Writing Pen in Midnight Color__Stone Blue__leuchtturm-1917-composition-hardcover-dot-grid-notebook-in-stone-blue-b5 Filling System: International size ink

Filling System: International size ink cartridge refill

Scribo Bottled Ink in Classico Seppia (Back to Classic) - 90mL

Noodler's Ink Refills Aircorp Blue-Black Bottled Ink - ND-19040 3 ounces of ink per bottle

Diameter of barrel:17 mm

Sheaffer VFM Fountain Pen in Matte Blue with PVD Trim

Tom's Studio Wren Refillable Writing Pen in Midnight Color__Stone Blue__leuchtturm-1917-composition-hardcover-dot-grid-notebook-in-stone-blue-b5 Filling System: International size inkDiscover the Tom's Studio Wren Refillable Writing Pena sustainable and elegant writing instrument designed for those who value both form and function. Whether you're jotting down notes, journaling, or sketching, the Wren offers a smooth and consistent writing experience. Emphasizing sustainability, the Wren boasts an eco conscious, refillable design. It includes an ink reservoir compatible with most fountain pen inks (excluding shimmer and iridescent