Link material The transparent links are manufactured of polycarbonate. A special anti-graffiti coating protects the surface of the material, preventing most scratches and making it easy to remove graffiti. Both polycarbonate and coating are UV stabilized. Dimensions: 300 x 108 mm Link weight: 150 grams Coupling tube The dimensions of the coupling tubes are 17x2 mm. The standard tube profiles used are of anodized aluminium. Stop cap The dimensions of the stop caps are 25x11 mm. Material: plastic. Curtain weight: 8.6 kg/m2 Side view rolling shutter Assembly The transparent rolling shutter is easy to assemble. A tested roll technique has been selected. The compact system can be installed in most existing structures. Technique The rolling shutter is powered by a tubular or blocks motor and can be provided with an extra manual drive for emergencies. Electrical control options: remote control or key switch. Material The guides are made of steel and can be provided with a special plastic inlay for ease of movement and noise reduction. "These Polycarbonate clear shutter links (NINE access PCSL) are clear, transparent with almost cent percent see thru concept and are tested and found positively, they are stronger than steel.