Security Window Locks with Secure Screw Action Model:U9800
Ground / Parcel - Usually Ships Same Business Day (details)
Note that these window locks are not required for window kit installation- but they can provide some additional security. They allow you to "latch" your window shut with a window kit installed. They screw into your window sill, so semi-permanent installation is required.
One pack of two window locks is good for securing two windows.