Featuring an improved grip for superior control and a smooth output, this pen is ready to be your go-to writing tool. The all-in-one chrome pen has a silvertone finish and three functions: black ink, red ink, and a mechanical pencil component. Craft Design Technology also adds their unique ink formula which is a blend of oil and water-based materials that help the ink last longer. Each pen is finished with a spring-loaded clip that's easy to attach to thick notebooks and journals. Refillable with CDT 0.5mm lead and ink cartridges.