This is a set of four Stabilo Work Colorful roller ball pens: black, red, blue, and green.
The Stabilo Work Colorful roller ball pen flows smoothly and produces a medium line great for every day writing needs. The body has an anti-roll away design thanks to a small nub that sticks out from the pen body. The body also features a soft rubber coating and is ergonomically shaped for writing comfort. The high-quality nickel silver (a copper alloy with nickel also known as German silver) tip provides an extremely smooth writing experience while dispensing the latest Stabilo liquid ink technology.
Pen dimensions: 5.6 inches long, 0.4 inches diameter (14.3 cm long, 1.2 cm diameter).