This fountain pen is handcrafted from Tru Stone™ Blue Agate. Tru Stone™ consists of more than 85% actual stone. Your pen will shine with an appearance that resembles genuine stone. Tru-Sone™ blanks are made by a unique process by pulverizing semi-precious stones into a powder, then combines them with other natural pigments and resins. Blanks are cut to size, drilled, and then turned and finished on a lathe. The pen uses bottled ink (siphon pump included) or an ink cartridge, and has a round grip with a German-made iridium-tipped nib.