This is a red and black Corian slimline Twist Pen. Corian is the counter top material that is used in kitchens. The pen is made with 24k gold plated accents, with a black stripe in the clip. The pen uses a Cross® style refill that features a premium Swiss-made carbide writing tip for smooth consistent writing. To replace the refill, pull off top of pen above the center band and twist out the refill. A highly polished lacquer finish was used to protect the Corian. These hand made pens and pencils make wonderful gifts and are absolute treasures to own!