RSG Accessories Door Latch/ExtenderDoor Latch is another Australian design from RSG Accessories. Have you ever been caught caravanning on those humid evenings? When you'd like to open every window and door to let the van cool down overnight? BUTbecause your door is open, the window directly behind cant be! The Door Latch is able to attach to your existing door latch and adjust to several lengths to allow for different degrees of window openings. The screw and bolt end is double sided