Opening size : 2500mm(w) * 2500mm(h) Installation way:outside mounting Completed roller shutter size: 2644mm(w) * 2872mm(h) Slats: foam insulated 55mm slats Color:white Guide rail: 72mm Cover box:aluminum material, 250mm Octagonal tube: 60mm Control system:tubular motor and remote controller Packing:honeycomb cardboard box