This one like the olden days 8 leafs windows. For non guarded house is not practical. I was looking at this too, but above my budget and not safe for my housing area.

Another type i like "grill" is the kopi shop type. Now is also in trend, but the thickness is so thin.

This version will not leak, saw a demo last week on the Achidex.

And is sure tough to clean. All this need to have maid.

Not nice lah with this windows + Grill.

You know the conventional "8 leaf" windows, come with metal bar already. Better