Opus 88 Flow Green 0.7mm Lead Kaweco's mini piston converter are

Kaweco's mini piston converter are available separately

Color  Green Dry Time 30 seconds in a Pilot VP medium nib on Rhodia Flow Wet Shading No Sheen No Shimmer Silver Shimmer Limited Edition No Water Resistance Low Iron Gall No

Brand KWZ Ink Name Flame Red Country of Origin Poland Color Red Dry Time 60 seconds in a Pilot VP medium nib on Rhodia Flow Average Shading Medium Sheen No Shimmer No Limited Edition No Water Resistance Medium Iron Gall No Pigment No

Jacques Herbin Terre d'Ombre from the Essentials collection is a medium true brown ink with low shading

Brand Noodler's Ink Name Black Swan in Australian Roses Country of Origin United States Color Red Dry Time 40 seconds in a Pilot VP medium nib on Rhodia Flow Dry Shading Medium Sheen No Shimmer No Limited Edition No Water Resistance Low Iron Gall No

Opus 88 Flow Green 0.7mm Lead Kaweco's mini piston converter areThis large fountain pen features opaque swirls of black, red, and green ribbon on a transparent body, with accenting solid green acrylic cap and end piece. The pen is an eyedropper filler with a shut off valve mechanism designed to prevent ink from leaking or drying up. To fill, unscrew the section, fill with the included eyedropper, and replace section. To write, simply unscrew the end blind cap, which releases the middle piston rod's shut off