Secure direct access. Window grilles to protect basement and ground floor windows from break-in attempts. Time and again, criminals find that a direct route is sufficient to break into your home. Basement and ground floor windows, if inadequately protected, make it easy for them. Secure these windows with a reliable grille. The window grille can be adjusted in width to fit the respective window. Vertical installation or the combination of two grilles stacked on top of each other is also easily possible. The material used is particularly weather-resistant. The corrosion resistance can be further enhanced through metal protective coatings.