Poly-carbonate is a man-made material that's especially suitable for roller shutters. Like glass, it's transparent, but unlike glass, it's very hard to break.
Self-supporting, and constructed from strong, lightweight aluminum, Rolling Security Grilles provide reliable protection against break-ins, theft and vandalism,which is Ideal for storefronts.

 Above the store entrance without a trace. Plus, as they secure openings of virtually any width, grilles promote the type of expansive, inviting entrances that help draw customers into the store.