The hooks hold good. Even in the bathroom and wooden doors. Unfortunately, they break off very quickly. One after one month and the other one month later. And this in normal everyday use (towel). When detaching the plastic plate may cause injury. When removing the plastic, the plastic flakes is to basement, which inflicted a bloody Verleztung me by the hand. Beimn detachment therefore best gloves (which is but nowhere, no warning of danger!).