SHARPIEIndustrial Permanent Markers, Fine Point, Black, Box of 12

I've been using these industrial strength Sharpie pens for several years now, so much so that I keep a marker in each of various places around the house and in my shed. They tend to get misplaced while using them, so finding a box of 36 is a great find! And not only that, the price is better than buying them singly or in the popular 3-pack. Now when I need a marker right away, if I misplace one I can go back to the "big" box and be assured I don't have to spend a half hour hunting down the others.I use these to mark canning jar lids, PVC pipe projects, etc. They do not smear and are waterproof ink. The only way I can remove the markings is with pure acetone, which works well for the laminated labels I created for use with my food jars. When the fine tips start to wear down a bit, they get transferred to use with garden and outdoor projects. It's a handy rotation system, and it takes a long time before any ink dries out. Usually I lose them before that ever happens, though. I highly recommend these for truly permanent all-purpose projects!

These things are worth it. We use them in extreme temperatures in our food truck where we have had issues in the past. They write on grease, they write on wet without too much bleeding. One marker lasts long enough that we lose it 1st. This will be our go to for sharpies in the future.

Great for plant tags

These Sharpies are AMAZING!!!!! I have bought hundreds of sharpies over the years… school projects, artwork, business, church, community and have loved them. But these Markers are AMAZING! They mark on every surface I’ve tried, Even things directly out of the freezer! Buy them, you won’t regret it!😃👍🏻

These Sharpie markers do write better than the regular black colored markers, but I do think Sharpie can do better with markers labelled "Industrial". I use them in a clinical microbiology lab to write on the plastic part of agar petri plates that we streak bacteria onto. They don't write nicely over plates that have some condensation, so they are not as waterproof as they claim if the plate is already slightly wet. If the writing gets wet though, it is pretty durable to not fade out. Heat-proof is also very good for my use in that mostly putting test tubes in a heated water bath or dry heater, the ink does not fade readily. I usually have to wipe the plate off with a towel before writing on any damp or wet plates.However, they are not very long-lasting. After writing on several tens of plates a day sometimes a hundred, the marker maybe will last about a week or two before it become dull or spotty. I've noticed though that the blue color "regular" Sharpies have some sort of more potent dye because they outlast any other color that Sharpie produces. We use blue markers regularly at the lab for that reason. They show up well and are more potent than other colors and types of Sharpies.I would also like to suggest to the Sharpie gods that they should try incorporating the "click" pens for these types of markers because in the industrial or professional lab environment, we do not have time for capping and re-capping these things every use. A simple click pen would be a nice twist to this. They will dry out quickly if left uncapped for a minute or two between tasks.I would continue to purchase these and also the blue regular Sharpies for my use in the lab until I find a better product.

These work great! I always need one of these, but they're never around. Now, I have one every time I reach for one!

I am a pen snob. I will never go back to regular Sharpies or any other permanent marker. Crisp clear ink and firm felt tip makes writing clearer than other markers. It allows you to record the date food was opened on slick or damp with condensation plastic packages, like sandwich meat from the refrigerator section. Great for writing names on plastic cups, making signs, labeling personal items. SUPERB PRODUCT!! I have purchased 3x and shared with family and friends. Yes, I am that girl.

Great