Pentel refills for BKL77 ballpoint pen, black, 0.35 mm, BK77/BK401/BK127

These refills make your favourite Pentel ballpoint pen write like new again.⁠‌‌‌‍‌‌‌‌‌‍‌‌‍‍‌‍‍‍‌‍‍‌‍‍‍‌‍‌‌‌‌‌‌‌‍‍‌‍‌‌⁠ With the fine 0,35 mm line you get precise lines for notes and drawings.⁠‌‌‌‍‌‌‌‌‌‍‌‌‍‍‌‍‍‍‌‍‍‌‍‍‍‌‍‌‌‌‌‌‌‌‍‍‌‍‌‌⁠

When do you need replacement refills?
These Pentel refills are intended for when your favourite ballpoint pen runs out but the writing instrument itself still works perfectly. Instead of buying a new pen, you simply replace the refill and can carry on writing. This is both economical and sustainable.

Which Pentel pens are these refills suitable for?
These specific refills fit only the Pentel SUPERB BK77, SUPERB G BK401 and .e-ball BK127 pen models. They are not interchangeable with other pen brands or even other Pentel models, so always check the type number of your pen before ordering.

What does the 0.35 mm line width mean?
With a line width of 0.35 mm, you get fine, precise lines that are ideal for detailed writing, notes in small handwriting, or drawings that require precision. The ball has a diameter of 0.7 mm, which ensures a smooth writing experience despite the thin line.

Practical tip for use
Always keep a spare refill to hand, especially if you write regularly. Pens often run out at the most inconvenient moment. When replacing, make sure you press the refill fully down until you hear a click - this ensures the refill sits securely and doesn't shift while you write.