If you have a unit in Australia and its above level 2 , you most likely will need to install window locks or window restrictors, to prevent children falling out the windows, this is a new regulation that is coming into effect this year, See our lock shop to buy window locks and window restrictors. https://www.drlock.com.au/store/lock-locks-shop-buy-deadlock-sydney/window-locks-lockable-windows-catch-whitco
