Black Paint Pens Permanent Markers - 2 Pack Oil Based Quick Dry Waterproof Markers for Plastic, Tire, Rubber,Wood, Rocks, Metal, Canvas, Dark Surface,Craft Art Supplies,Medium Point

I got these for a single purpose but rapidly discovered a lot more used for them. Writes cleanly and durably on pretty much any solid surface, such as (so far): silicone mat on induction cooktop, bottles for decanted shampoo and conditioner, kid kayak and paddle, life jackets, water bottles, cooler, sure there’ll be more.

I used these markers to make vertical stripes on my picture window as an attempt to stop birds from crashing into it. Markers worked very well and the paint seems like it will last a long time. Mistakes I made were were removed with a razor blade, but once the paint hardened it was more difficult. I used only one for this project and had more in the tube when finished. Would buy again. Update-I guess they are not waterproof. Some of it washed off when rain hit the window. Possibly I wasn’t priming the pen often enough. I reapplied the paint stripes heavier so we will see.

I needed a silver paint pen to touch up some places inside my car on some of the knobs and dials. I wasn't sure whether this would work, but they were very easy to use and match perfectly. You need a semi-steady hand to touch up small areas, but, at least in my case, this paint pen perfectly matched the silver knobs in my car.

Worked good on rusted screw heads.

Exactly like advertise.

Good, cheap fast delivery. No complaints.

I needed to mark machined plastic, works fine.

It's just what I wanted, only used it once so far.