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The Petattsu adhesives are like gelatin colored dots that are easy to peel off from a variety surfaces. The gummy glue spots are acid free and can be used for photos, notes, kitchen recipes, posters, and more. The product can be reused for as long as the stickiness will last, making them very useful for posting different recipes on your kitchen cabinet for example. Or, you can hang your children's artwork on their door without having to worry about tape damage or holes. They work best on clean, hard surfaces. Avoid hot surfaces (exposed to sun or over 104 degrees F), dusty, oily or uneven surfaces. You can try the adhesive on an inconspicuous place to test it in advance. Product dimensions: 1 cm in diameter for Medium size, 1.4 cm in diameter for Large size. Approximately 0.2 mm thick.
I was a bit disappointed in using these. The problem is that you should not move
the poster after you have placed it on the wall. The poster fell down several
times when I tried that. I had used 4 of them on an 11x17 poster. They worked
great on the poster that I had not moved though. Perhaps it was because the
walls were warm, it has been about 80°F for the past week. I also had to use
quite a few (8) on a 18x24 poster that was about as heavy as cardstock paper.
However, the good thing is that they are easily removed from the poster but you
really can not reuse it after that.
So to sum it up, it works well but it is not as reusable as you would like it to
be and it is removable.