Was really only useful as a temporary solution until the purchase of an expensive door chain, because I thought that he has the mechanism to get out quickly. Forget it.
Mechanism can only be with a lot of press force (and I am not petite built). My wife can operate the mechanism only with äuserster of force !!
Installation is also very easy, window / door open, lift cover under Fentergriff and rotate 90 degrees, loosen the screws underneath, insert the fuse between handle and door. Screwing, finished. Everyone will get the correct screwdriver back in 5 minutes or less. (For me, the old screws fit in any case of the length, so I had no new purchase)
Thus aim fulfilled, permanently. When Junior was the aufkriegen he is at least 10 years and can certainly swim.
PS: I think that it is so burglars certainly done more difficult also because the handle moves only when backup operation. This addition made the home a little safer for little money.
Update: despite multiple daily use, the spring of the fuse of 2 months ausgeleihert something, but power is still enough needed to secure the door in front of children. My wife, gets the door open now;)
