The Uni-ball Jetstream Retractable is an oil-based ballpoint pen that writes with the smooth, vibrant feel of a gel pen while drying as fast as a traditional ballpoint. The 1.0mm medium tip delivers bold Black lines that are smudge-resistant, water-resistant, and dry before your hand crosses the page — handy for left-handers. Super Ink technology bonds the pigment to the paper for long-lasting documents.