Screens can be fixed to an array of existing sliding window configurations, once the screens are locked into place using tamper-resistant screws you can sit back, relax, and enjoy peace of mind and a cool summers breeze. Crimsafe screens can be fixed either from the inside or outside depending on the type of window configuration. Cheyne and the team know just the right tricks to secure your family home with Crimsafe Screens even under the most challenging circumstances.