24kt Gold Streamline Pen Kit A variation of a traditional twist pen, the Streamline pen features a dual-taper design with a 4-ring center band and tapered, streamline clip. Additional heft and tapered barrel design give this pen a retro look and feel. The Streamline pen includes a Cross style refill for smooth, dependable writing. Finished pen size: 7/16" x 5-1/4" long. Minimum blank size: 3/4" x 3/4" x 5".