Cadie Freezer Black Permanent Markers Fast Drying, Waterproof Marker for Labeling, Chisel Tip Marker, Lab Marker, Food Labeling and Dating Pens for Easy Writing on Paper, Foil, Plastic and Glass

Writes well on plastic bags/containers, does not smear once dry (dries quick) and- bonus- it washes off with dish soap and water, so no more stacked labels on reused containers. If the tip gets wet while using, it will not write anymore, but if you cap it and let it sit awhile it will be perfect again. Will definitely buy again! Still working months later!

Very effective pen. Lasts quite awhile. Do NOT write directly on anything. None of the long-recommended home remedies for removing permanent ink will work. Writing fades but is not gone. That is a good thing unless you're careless and assume you can remove the writing...I do recommend them.

I was having problems with the writing on my breast milk bags rubbing off, which as we know is not helpful.This has been great, doesn’t smudge, smear and dries quickly. This would work great for anything you need to add info on that will also get very cold (freezer meals, breast milk bags, labeling school ice packs) just endless uses. I have used as a standard permeant marker and it works great too.

Happy with this product. Good strong marker

I'm on the fence about this one. I bake and freeze a lot and was using just a pen to write on the outside. Found that the ink smears so bought these to see if they would work better. They did. I would have given it more stars if the pens were thinner. It's not easy to write with being so thick. They are still better than what I was using and the paper sticks to the plastic and foil easily.