【Knurled Brushed Nickel Stainless Steel】 Made of high-grade 304 stainless steel, our knurled brushed grab bars feature waterproof & corrosion-resistant performance for long-lasting durability. 【Anti-Slip Knurled Design for Secure Grip】 Deep knurling texture provides firm non-slip grip in wet conditions, making these shower grab bars for seniors and Handicap safer than smooth polished bars, effectively reducing slip and fall risks.