I am working for some time with the theme windows backup because we (family with 3 children) ever stayed in the 1st floor and old building in the future get used a 2-storey house. All adhesive solutions have been rather moderate convinced me - The universal solution of the well-known Swedish furniture store came off pretty well. But in the new house I wanted to do without glue - drill / screw in the brand new window was not an option. I now have the Reer 70010 fuse on 5 windows in use.
Pro: - Easy to mount under the existing window handle - Residue-three (Klebereste, screw holes) can be removed again - For children slopes can not be opened
Cons: - From 5 copies ordered the knob at 2 only with a very high effort (almost violence yes) did move. After first pressing but all went with reasonable effort.
For me and my purpose the Optio male solution - up to the fluctuations in the processing absolutely top (hence 4 stars)
