Make of Marine Grade Stainless Steel, which has excellent resistance to rust, and extreme weather These stainless steel protective sleeves fit 1 / 8inch cable in levels wooden posts The cable railing sleeves can cover ugly holes and a clean look to enhances the overall visual appeal of your space The cable railing protector sleeves can keep the cables secure in place, cables from wearing into the wooden posts, and maintain the tension of the cable guide over time, ensuring the longevity and aesthetics of the wood posts Suitable for indoor or outdoor wood post applications, such as deck, balcony, staircase, baluster, courtyard, porch, handrail and other areas where stainless steel cable railing set are needed, Manufacturer: Fentency