... surface without chips,scratch,attrition 3. Resist well in yellow,warp,fade,peel and crack Product information Plantation shutter:1.the ... , waterproof,5) Features: Abundant designs, Easy to install,Louver adjustable for air permeability, sunlight, sound, heat, environmental-friendly 6) Colors: Refer ... .Contact person:BillMob:+0086-18680407896 4.5" louver T post for L frame Wooden Plantation shutters