edding800 permanent marker - black - 1 pen - chisel nib 4-12 mm - for bold markings - waterproof, quick-drying, smear-proof pens - for cardboard, plastic, wood, metal, glass and fabric

Using instead of steel blue dye and whilst it takes a little while to flash off and dry, it works beautifully. Refillable and seems like they were a bit tight on the initial fill so we'll see how long it lasts for...

I was debating getting this vs. some proper engineers blue but I bought this for convenience and admittedly slightly lower price. It works well. The tip is wide enough (I was looking at the wider 850 but this is fine) to cover a 100mm square area pretty quickly. It makes scribed lines really stand out well and it dries quickly. It's fairly robust but it does wear off fairly quickly which is the only downside.If you were doing something like scraping then I would recommend you go for some proper engineers blue but for spotting some holes and quicker operations it works perfectly well.Definitely something to keep in your toolbox for easy access but I think I'll end up buying some proper Dykem or equivalent in the not too distant future.

Good value for money and did the job with ease

I bought this to cover up some small paint chips on my enthoo Pro tower had it about 5 years, it does the job pretty well till I can get a new case

The cap wasn't on, because it didn't fit properly, and the pen had dried up before I got it. Got a refund.

Bigger than expected but that’s a good thing. Using it to mark timber on my treehouse building project. It’s refillable too - but haven’t got to that point yet.

Does what it says

Great nib size. But crikey it took ages to dry which frankly is not a lot of good.