heroal security shutter systems are made of aluminum and stainless steel to gain maximum protection for private and commercial buildings. The slats and panels are roll-formed or extruded for maximum protection. Numerous security features like three-piece, extruded locking end slat, dual-function anti-push-up device or extruded guide rails with an additional bar improve the burglary protection of our systems. heroal security roller shutters systems are manufactured in Germany and offer highest quality. The burglar resistance of the heroal security shutter systems is certified by the Institute for Window Technology (ift-Rosenheim).