Cabernet Mammoth PenThe Cabernet 'Mammoth' is a rollerball pen featuring a barrel in 10,000 year old fossil Woolly Mammoth tooth, and a light structure in aerospace grade titanium and aluminum. The accents on the carbon fiber cap are in Mokume Gane and sterling silver; the pocket clip is set with a sapphire. Featuring William Henry's patent pending Wavelock cap closure system a ring of chromium steel balls embedded in a titanium ring which are captured in wave shaped