Mitsubishi Pencil Jetstream SXR8005K. Black, Red, Blue, Green, 40 pieces 2900 Mitsubishi Pencil uni Jetstream multi-color/multi-function refill Paper package, 0.5mm ◆ There are 40 refill colors, but Please let us know if you have any changes. Black, Red, Blue, Green This is a 0.5mm refill ink for Mitsubishi Pencil's smooth oil-based ballpoint pen, Jetstream multi-color/multi-function. Jetstream is significantly different from conventional oil-based ballpoint pens, offering a smooth writing feel and quick-drying properties, allowing you to draw clear, dark lines smoothly. It was renewed in November 2022, with a 10% increase in ink volume and a paper package to achieve continuous and effective plastic reduction. In addition, by making the printing on the refills clearer and easier to see, we have also taken measures to prevent incorrect purchases. Compatible products: SXE3-400-05 / SXE3-507-05 / SXE3-601-05 / MSXE3-500-05 / MSXE3-701-05 / MSXE5-1000-05, and other multi-color/multi-function Jetstreams (excluding Jetstream Prime)