Poseidon is a figure from Greek mythology, god of the sea, master of the watery depths. The Bexley Poseidon Collection features caps and barrels with a translucent portion that allows you to see the 'watery depths' of the pen's inner workings. The translucent areas have bits of molten color. The cap and barrel ends, and grip section, are accented in the matching solid color. Three color combinations are available:  The fountain pen version is 5-3/16" long and 5/8" in diameter, so it fits comfortably in your hand and pocket. It is equipped with our two-tone 18K gold nib, in a fine, medium, large, or stub width. The matching roller ball has the same dimensions, and comes with a widely available refill