... paulownia woodColorRefer to color swatch, and customerized color availableStylesArched, sunburst, round, octagon, elliptic, cafe, double over hang and french door.custormised ... bi-folding opening , special shape shutterSizesLouver:2.5", 3.5", 4.5"widthUsageWidely used in villas, star hotels, office buildings and ... conservation, exquisite s Eco-friendly High Quality Wooden shutters for round windows