... colorful shutter 2.light,thin,durable,low power,no heat/radiation 3.catch eye,bright dark room,easy install ... to install, Louver adjustable for air permeability, sunlight, sound, heat, environmental-friendly7) Colors: Refer to color swatch, customerized color ... : By sea or by airhome decoration shutters1.waterproof and heat insulation2.European CE certification3.material:Aluminum Alloy4. 8 colours ...