These pens are so bad I don't even know where to start. They are the leakiest, shortest-lasting, heaviest, and most difficult to write with pens I've ever had. They "skipped" a lot, where there would be no ink and you'd have to rewrite/write over the blank spots, and then at other times too much ink came out. They didn't last long, which was a relief because I hated using them and a disappointment because it's a LOT of pen to toss into a landfill. Would never use again. I'm sorry I strayed from my trust Uniball Visions.