... Aluminumm Alloy:6063T5 Model:JW1506 Aluminumm Profile Thickness:1.0 Window Roller Shutter Perfomance: 1) Slat option: 55,60,77,78 ... ,76mm,120mm proof-hurricane guide rail 3) Motor: tubular motor,outside motors4) Common colors: White, cream, grey(All kind of styles ... Manual, electric and remote-controlled operation, pure manual.After the window opened, the oppression like in cage and stain in vision ...