Child lock Windows

Since my 1,5 year old toddler is some sort of McGywer we needed to lock the windows.Have you ever wonder how fast a toddler pulls a chair from the kitchen and moves it to a window and then opens it and are on its way out..Less than 10 seconds.Printed in ABS since the bastard is strong so he broke the first one in PETG, Might work with PETG as well if you add moreinfill to it. Works on newer windows and tried it on older type of windows with a similar latch and fitted as well but needed to put screws on the sides (holes added)Tigh fit!