For years, keep these hooks (in conjunction with the tesa 58800-12-00 - tesa Powerstrips Deco) harmless homemade interior blinds Cotton Rips on small windows where shutters would take away too much light. Do not fall on and are very stable. For replacement I have always worry when I clean a window and open it to flourish because it is too close to the wall and kills the small hook on the hook. But this is only one of the four windows of the case and own fault, so to speak. ;-) Quick is a new fitted, something clean the area with alcohol and it is secure for years. A great solution for me in simple terms.