-Multi-point lock design with mushroom lock head can strengthen the window structure against break-in attempt
-Tilt design can keep indoor ventilated when lowering the wind strength coming indoors.This design is also less likely to hit children's heads.
-The hung design can save indoor space.
-Specially designed for security enhancements,and is suitable to apply for houses in suburbs and less populated areas, without needing to cover the whole building up with fences.
-In windy weathers or high rise flats, this design can lower the speed of wind coming indoors.
