Material details: ingenious craftsmanship, preferably stainless steel 316 material, crosion-resistant, rust-free, durable Surface treatment: The surface is high-precision mirr polishing treatment with higher precision, brightness polishing degree, the reflection is clearly visible. It can not only effectively prevent rust crosion, but also show a high-end atmosphere 5inch Round Louvered Diameter: 5inch(127.5mm) Thickness :0.03inch (0.8mm) Easy to use install. 316 stainless steel, crosion resistance durable. This louvered can not only ventilate, but also prevent wind rain Great f related vents in boats, marine, yacht, caravan, home The beautiful appearance of the wall grille cover is suitable f any architectural style can add a luxurious touch to your home Colour:silver Material:Stainless steel Package Contents: 2 x 5inch Grille Cover Only the above package content, other products are not included. Note: Light reflection different displays may cause the col of the item in the picture a little different from the real thing. The measurement allowed err is 1-3cm.