The Esterbrook Honeycomb Push Piston pairs the gold and brown honeycomb-pattern acrylic with Esterbrooks push-piston filling system for a larger ink capacity than the cartridge/converter version. A practical upgrade for writers who use their Honeycomb daily and dont want to refill as often.SpecificationsBrand:EsterbrookModel:Honeycomb (Push Piston)Color/Finish:Gold and Brown Honeycomb PatternFilling system:Push-piston (high capacity)Nib material:Gold-plated Steel (JoWo #6)Nib sizes available:Extra Fine, Fine, Medium, Broad, Stub 1.1Body material:AcrylicMade in:USANib GuideExtra FineVery narrow line; ideal for small script or fine-lined paperFineNarrow, precise line; excellent for small handwriting and detailed workMediumBalanced everyday line width; smooth and versatileBroadWide, expressive line with excellent ink shadingStub 1.1Italic-style nib with line variation; broader on downstrokes, finer on cross-strokesFree shipping on all U.S. orders.