I recently purchased a package of mini hooks in order to hang 4 pictures. I applied them to my orange peel textured sheetrock wall following the directions completely. I even gave them extra time before hanging the pictures. 3 out of 4 pictures fell within a week. I reapplied new hooks/strips thinking I had somehow made a mistake in applying the strips. Again 3 out of 4 fell.
Won't buy these again to use on my walls. Your claim that they stick to ANY surface is incorrect.