STAEDTLERLumocolor Permanent Pen 318-9 Fine 0.6mm Line - Black (Pack of 4)

These pens write nicely and the ink does not fade in direct sunlight. I like that they are refillable. I got them for rock painting and outlining and they are my favorites. Quality pens.

These pens work really well! They are easy to write with and do not bleed through pages. The color is true black and the tip is fine for clean writing. I used these at my wedding for guests to sign my welcome book! I was very pleased with them!

Absolutely love these fine point pens. Been using them for 5+ years now.

I mostly write on smooth metal (typically in the realm of 2B stainless) with these, and they work flawlessly. They lay a very dense, solid black line that's thin enough to work with reasonably sized handwriting but not so fine that it's illegible at arm's length. I much prefer the thin body to something like a fine point Sharpie, but that's also my only complaint with these: There's not a ton of ink in each one, so I go through them kind of quickly. I can overlook that since they're almost perfect for my needs otherwise and still highly recommend them.

Great price, quality product. Long lasting.

We’re old school, we like to print out photos and write names and dates on the back. These are the first truly smear proof pens we’ve found, will even write cleanly and permanently on the front of glossy prints. The ink dries almost immediately and never smears. Better than Sharpies even!

Great for stained glass! Mark stays on well throughout the process until grinding.

These indelible ink pens are fantastic and just as described. The point is fine tipped and holds its shape even when used on rough surfaces. I however had purchased this one because I had the Staedtler indelible ink refill, but had lost the pen that I had. Even though the station said that it was a refill for the 318, I must not have order the correct one as I can not find how to refill the pen. Overall, I am glad that it comes in a pack of 4, because I use this frequently in archaeology and forensic anthropology work to label bones. This pen works on porous and even rough surfaces.This is a great product and a great company. I would definitely recommend this to anyone looking for an indelible ink pen that will work on any and all surfaces.