Pilot Knight Collection Fountain Pen, Medium Nib, Silver Barrel (65103) Classic designs feature stylish matte barrel finishes in black, silver, navy and burgundy with attractive silver accents Spring-loaded stanless steel clip allows for effortless attachment and removal from shirt pocket. Each fountain pen comes equipped with a medium stainless steel nib ensuring long-lasting, quality performance Pens utilize IC-100 ink cartridge for simple and clean refilling