3 PCS Fountain Pen Replaced Nib for P36, P50, P80, and V200 Series, Silver #6 EF/F/M Nib Set

Nicely made. Excellent value for money

Great product excellent

Have several of these pens. The Asvine nibs seem to be superior to the Bock nibs and cheaper! However the Broad Nib is only available as the Bock version. Mine needed some fiddling with- the nib itself is well shaped and undamaged but required some adjustment as to it's position relative to the feed itself. Very easy to do if you know how to do it and probably impossible if you don't! Have had the same problem on three Bock nibs. The Asvine nibs have been well set up and write well straight away with no adjustment needed, this with a variety of different inks. The Bock nibs didn't work well with any of the inks that I had no problems with in the Asvine equipped pens until I had adjusted the setup. People mention the spare O rings, they don't fit any of the working parts and appear to be spares for the two decorative grooves on the blind cap.

Whilst the nib writes very well the connection to my pen does not fit securely enough and it leaks. Size is exactly the same as my pen but I’m going to have to get the makers nib and obviously pay more.

Not the best.

Je l'ai choisi pour la plume (nib) EF. L'écriture est plus fine, et l'encre ne traverse plus le papier

I’ve gone through a lot of nibs across different brands, and one consistent reality is that most of them require some level of tuning to really perform well. That’s where the Asvine #250 Nib Units stand out immediately—they simply work right out of the box. I installed these into multiple pens, and every single one wrote smoothly and consistently without any adjustment. That alone puts them ahead of many competitors in this category. Performance & Writing Experience: What impressed me most is how well Asvine executes their Extra Fine (EF) nib. It aligns closely with the Japanese definition of EF—producing a crisp, controlled line around 0.38mm, which is exactly what I look for in a daily writer. Clean, precise line Consistent ink flow No scratchiness or hesitation In fact, I ended up replacing a Bock EF nib with the Asvine EF in one of my pens. That wasn’t something I expected going in, but the performance justified it. Quality vs. Brand Reputation: Brands like Bock are well-known for quality, but in my experience, they often need tuning to reach their full potential. That’s fine for enthusiasts—but most people just want a nib that performs well immediately. That’s exactly what Asvine delivers- Reliable out-of-the-box performance Strong quality control Writing feel that rivals—and sometimes exceeds—more established brands Value Proposition From a pricing standpoint, this set is hard to beat. You’re getting three complete nib units (EF, F, M) for roughly half the cost of a single premium nib unit from other manufacturers. That alone makes this a standout purchase. But the real value isn’t just price—it’s the combination of: Performance Consistency Versatility Perfect for Finding Your Style This three-pack is also ideal if you’re still dialing in your preferences. Having EF, Fine, and Medium in one set lets you experiment and discover what suits your writing style best. For me, that confirmed what I already suspected: Extra Fine is my gold standard, and Asvine absolutely delivers in that category. The Asvine #250 Nib Units offer: Outstanding out-of-the-box performance Excellent line control, especially in EF Incredible value for the price I’ve already purchased multiple sets, and I would absolutely buy them again. Whether you’re upgrading a pen or trying to find your ideal nib size, this is one of the easiest recommendations I can make.

Muy bien,tres medidas que abarcan todo lo que necesitas.

Great nibs, very affordable and so easy to change out in the pen. I’ve purchased two different sets!