Who doesn't love a cool pen? These one of a kind creations are smooth writing and weighty in the hand. They are machined out of 3/8" round stock into a variety of designs. They are a two part design, each with a decorative spacer ring. They utilize a twist style transmission to engage the Cross pressurized ink cartridge contained within. The standard pen setup includes a single top cap but addtional caps can be added for increased functionality and versatility. Prices vary and are based on complexity of the design, materials, and finish.