The 2000's barrel and cap are made from a lightweight, durable fiberglass-reinforced polycarbonate resin from Bayer known as Makrolon. It has a brushed matt texture that resists fingerprints and grime, as well as providing a secure grip. The texture also helps to make the seams virtually invisible where the filler knob and barrel meet. The size, weight, balance, and finish all work together to create a pen that has been a favorite for over 50 years. With the large ink capacity and low quantity of metal, this makes a great travel pen as well. That clip is made from a solid billet of stainless steel it is rigid, but is internally spring-suspended so that it can open to grip even the thickest jacket pockets.