Designed for 1/8 inch wire rope and wooden posts with PVC sleeves, ensuring accuracy in every use. We know that the devil is in the details, so these cases strictly avoid angular installations or metal columns and focus on providing the strongest possible protection for horizontal wooden columns. They are not only a solid barrier against the damage of the wire rope due to long-term friction, but also the key to improving the durability of the overall structure. The installation process is easy and convenient and we have equipped the matching drill bits so that you can get more results with less time. Once installed, these sleeves not only allow the cable to run smoothly across the pole, but also effectively help maintain the ideal cable tension, ensuring the stability and safety of the railing system. More importantly, they have been designed with aesthetics in mind, with the loop design perfectly covering the rough edges of the drilled holes, adding a delicate finishing touch to the overall appearance, making your railing system both safe and pleasing to the eye. Its excellent corrosion resistance, corrosion resistance, even in high humidity, salt heavy coastal areas can also show extraordinary durability, long-term protection of your home.