Window Sash Jammer Security Lock Door Letterbox Securit White 65mm Safety T Type

Window Sash Jammer Security Lock Door Letterbox Securit White 65mm Safety T Type

These simple devices provides a secondary lock that can rest on the window opening sash or the door frame. It works by simpling swinging the arm across the sash. Customers typically use them when they are out of the house, in the case of windows, or during night time hours when they are in the house. Having mostly been used on windows it is now a popular product for use on doors but only when inside the house.