Weather protection, Security and total protection with G-Line Roll shutters. Reliable, durable aluminum profiles injected with CFC- free foam. Heavy duty profiles effectively shield against energy loss, harmful UV radiant, and noise. Operating Options are manual cord, crank or spring and fully automated systems. Security options include a wide range of tamper proof locking options: including standard auto –lock mechanism, built in security springs, sliding side bolts and master – key cylinder locks.