Features: This fountain pen inks converter filling tool solves the common problem of difficult inks absorption for most piston-filled fountain pens, offering compatibility with various standard fountain pens and enhancing inks refilling efficiency with its spring loaded design. Crafted from stainless steel and plastic, it features quick cleaning and maintenance, ensuring durability and practicality as inks converter accessory. Ideal for office professional, students, and frequent pen users who require efficient writing tool for daily tasks and creative endeavors. Perfect for on the go scenarios like business trip, daily commutes, or extended writing where portable inks filling aid provide convenient and timely inks refilling support. Its compact, light weight build and efficient spring converter mechanism deliver precisely and effortlessly inks filling for fountain pens, making it must have fountain pen inks filling aid for smoothly writing experience. Specifications: Component: Stainless Steel And Plastic Color: Clear Size: Approx. 12cm/4.72in (Adapted To 3.4/2.6mm Dimater inks Converter) Weight: Approx. 13g Package Includes: 1Piece Fountain Pen inks Converter Filling Aid note: 1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color