Fisher Space Trekker Keychain Ballpoint Pen in Matte Black Color__Chrome__fisher-cap-o-matic-chrome-plated-ballpoint-space-pen so it is perfect for

so it is perfect for fountain pens

Compatible with Platinum fountain pens

Cap: Chrome Clip

Each bottle has a color swatch on the outside to indicate the color ink within

Fisher Space Trekker Keychain Ballpoint Pen in Matte Black Color__Chrome__fisher-cap-o-matic-chrome-plated-ballpoint-space-pen so it is perfect forThe Trekker Space Pen perfect for anytime capability use. This Fisher ballpoint pen can clip onto anywhere hang upside down for hours and still be ready for use at the drop of a hat. The pen is on a key chain ring attached to the posi lock cap that allows for easy access. Included with this Space pen is a carabiner and a break away lanyard. Fisher Space Pen Outdoor and Tactical SC725B Trekker Ballpoint Pen Matte Black Keychain Pen with Outdoor Image