Uniball One F Earth Texture Colour 0.5/0.38mm

• Limited Edition (Earth Texture Colour)
• Ink colour : black 

• Bring crist,vibrant black line to your artistic & personal projects with these smooth  flowing , revolutionary gel ink pens .
• Specially formulated ink stays on top of fibers instead of being absorbed into the paper.
• Functional & strong wire pocket clip opens wide for easy attachment to documents, folders or notebooks.
• Vibrant black ink know to help with memory retention with students .

Soures of : 

https://uniballco.com/products/uni-one-f-color-clip?variant=42107724529870

Refill of pens :

https://www.bunkuya.com/products/uniball-one-gell-refill