This Sierra style ball point uses Parker type refills.  The pen is crafted from a real circuit board sanded to paper thin, then wrapped around the pen tube and incased in clear acrylic resin.  The pen is polished to a clear glass finish and is dressed in two tone chrome hardware to highlight the futuristic look.  This is a rare and unique gift idea that is sure to make a hit with any member of your family.  It would make a great addition to any collection.  The pen is well balanced and is easy to maintain.