edding750 Paint Marker - Yellow - 1 Pen - Round Tip 2-4 mm - Paint Marker for Marking and Labelling Metal, Glass, Rocks or Plastic - Heat-Resistant, Permanent, Smudge-Proof and Waterproof

Be sure to follow instructions on the side of the pen, I see alot of reviews saying the pens arrive dead and dry but you just need to push the nib in and out against a surface in order to activate the fluid. Great product.

I got this pen for using onto of an acrylic painting to add detail. So glad I did its very good coverage can see me using this alot. If your pen seems dry when you first receive it follow the instructions on the side of the pen. Once primed it's fantastic. Im going to purchase a finer nibbed one and a black one as I'm so impressed with the coverage.

Just what I needed to repaint the letters on a sign in our garden.Have used these before over many years and they always perform well.

The flow of paint was not as thick as I had hoped, it tended to deliver thin layers rather than a thick stripe. However it fulfilled its purpose after several applications. I required it for numbering the wheelie bins.

Great little pen. Tap the nib a few times to get the ink to flow and it is easy to control and use. Have used it on loads of things that I had never even thought of and has made a great job in hiding marks etc.

Wow - Once this goes on it is on! Dries extremely quickly and nothing will get it off afterwards except a sanding. Just what I needed for my job.

Was value for money, as I previously ordered for work colleagues, on maintenance. When I saw you could purchase for home perfect for the job needed.

Use these for brightening the grout between tiles, does a lot better job than dedicated grout whiteners from DIY stores