1、Stainless Steel: The boat deck filler cap is made of premium stainless steel, which has good wear resistance and anti corrosion, and can work well in seawater environment. 2、Easy to Install: This stainless steel boat deck filler is easy and simple to replace and install that is perfect replacement for your old deck filler. 3、Anti Loss Chain: The boat deck filler comes with an anti loss stainless steel chain, which makes you feel more at ease during use, without worrying about the loss of the cover. 4、Mirror Polished Surface: The surface of the boat deck filler is mirror polished, so that it is both beautiful and practical. 5、38mm Diameter: The diameter of this stainless steel boat deck filler 38mm, which is suitable for yachts and other ships.