Pentel N50 Permanent Marker Bullet Tip 1.5-2mm Line Blue Ref N50-C [Pack of 12]

These pens may leave permanent marks on certain surfaces, but plastic, well you can forget it. One wash under the tap on my Tupperware boxes and the pen mark disappears. Save your money, they’re vastly overpriced. They don’t do what they’re supposed to.

I use these pens all the time at work, but I needed to get my own supply so I grabbed myself a box of them here. I'm always writing on cartons with them on a daily basis, ink is bold and each pen lasts for weeks, miles better than lesser/cheaper markers. You only get what you pay for.

I have used these permanent marker pens for many years - they are very good. As long as you keep the lids on and store them in a cool place, they will last for years. They have a reasonably fine point allowing quite small writing.

Exactly what I wanted to disguise a dark blue carpet white binding that had become exposed where the vacuum had pulled out the fringe...

Excellent quality, they last quite a while. I use them for marking dates on packs going into the freezer and I get six months or more out of one pen.

This is may first time of using these pens so it is difficult to answer all the question, but so far they appear to be very good.

I got this for engineering and it does Work when filing a piece of material to get a straight edge but yesterday when milling a cube while marking the sides some of the numbers just smudge off when holding

Have used these markers for years. Always go back to them. They are waterproof and dry quickly. Have not found better.