b'Ajax Grilles & CagesFeatures High security retractable grilles and cages Suitable for domestic and commercial properties Custom made to suit your individual needs Available in almost any RAL colour* Blast tested using 100kg charge at 20m behind glass backed with anti-shatter film Allows line of sight for guarding and CCTV Neatly folds away out of sight when not in use No hot works required during installationsome colours at additional costs'