Uni-ball Jetstream SXN-217 fine point rollerball. Jetstream pens have super-smooth, ultra-quick-drying, waterproof and fadeproof pigment ink. Ideal for left-handers as the ink dries so fast there is little chance of smudging.
Jetstream RT is a click-retractable pen with a smart rubberised barrel and chrome accents.
0.7mm ball writes a 0.35mm line.