V7 Hi-tecpoint Roller ball pen with Cartridge System - 2 Blue Pens, 4 cartridges

The pen is insane bit if u keep it open for a long time then it dries up or fits perfectly and is very durable and it’s very fast ink flow

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Very good product and very smooth prn

Great pen, great writing, but the problem is that the ink doesn't last long, all it takes is one or two days of writing for it to end and once it ends, you better have more cartridges or you have to buy them online. Cuz this pen's cartridge is rare and finding them offline is a miracle. You can use different inks and fill the cartridge, but they are not even close to being as good as the actual original ink. Not even Parker ink was as good as the original. Oh, and there are many gel pens of this price range whose ink lasts longer and are WATER PROOF. Oh, that's right, this pen's ink isn't waterproof, just a drop of water and you can erase all of what you wrote.

Good