The perfect fountain pen for both novices and experts alike! The hexagonal shape of the barrel prevents the pen from rolling off your desk, and an engraved winky face on the silver steal fine-tipped nib helps orientate positioning as you write. The Kakuno design features a triangular grip to help new fountain pen users hold the pen properly. Each pen comes with one black ink cartridge, but the pens are compatible with refillable cartridges and converters as well. Takes pilot cartridges refills only.