ZEYARTwin Tip Permanent Markers, CD/DVD Markers, 4 Color, Ultra Fine Point and Fine Point for Signature and Marking (4 Colors, 12 Pack)

I was clumsy and smashed one of the pens and my finger still has ink on it. The ink got under my nail (and a little bit under my other nail), part of the skin, and pooled around the sides of the nail.For content, I spilled some ink on it on Sunday, today is Friday. I wash my hands a lot (from bathing, dishes, chores), and it's still hanging on.I also used these in class and they were amazing! With the dual tips I was able to write on tubes and do whatever else I needed. I unfortunately never got to use all of one because I'd give them away- I can't speak of how long they last.Only downside is that these pens are so great that they keep disappearing ;)

These are really good permanent markers. Having the fine and extra fine tips is truly convenient. Purchased colored pens as well.

Great pens. I primarily use them in my woodshop so they get more abuse than an office environment. I've dropped them (without the cap) off ladders and the the points were still in good shape.To have both medium and fine tips is a game changer. No more digging through a clutter of pens for the right size. All thumbs up!

These pens are better than Sharpies, and easy to use in drafting on materials other than paper.

The five pack was the same price as a single pen sourced locally, good value.

I burned around 80 CDs from iTunes and needed to label them. Was very easy to do with this item. Love the fact it has two different sized tips.

Great and such an awesome price.

I use the items daily and they are the fine point version, like the fact they are indelible