Picture of Child Lock?

[amc80]

Sailing on Liberty next year. I was told by RCCL that the balcony doors have built in child locks. Does anyone happen to have a picture of the lock?

[Ourusualbeach]

[brillohead]

In addition to the up-high child lock, the balcony doors are HEAVY, to the point that a very petite or weak adult might have trouble opening it on their own.

People often post here before the cruise about being concerned for safety of children in a balcony room.  I've never seen someone come back after a cruise and state that the child was able to open the door independently or without the adults realizing it.