The Uni Style Fit is the custom multi pen series from Mitsubishi Pencil Corp. These Jetstream refills are for any custom multi barrel in the Uni Style Fit series. They can be changed as often as you like. Mix and match these oil-based ballpoint refills with the gel refills or lead to add more versatility to your pen.

• Cult favorite super smooth Jetstream ink
• Available in 3 Jetstream colors (black, blue, and red) and in 3 sizes (.5mm, .7mm, and 1.0mm)
• Quick drying Jetstream ink means it’s left-hand friendly
• Choose your barrel here!