as opposed to the "normal" double-adhesive tapes hold the Extra-Strong bands of Tesa really good and reliable - for example, my battery powered circular LED lights or windows glued sensors. The other tapes that things have fallen again. Nevertheless, I would expect these bands no miracles but pierce the heavy objects whenever possible, or entrench. I am happy if ever stay with these "Extra-Strong" -Klebebändern the stuff on the wall ...