This Stainless Steel Protector Sleeves for Cable Railing.And used on wood posts to prevent the cable from wearing into the wood.perfect for DIY your own cable railing project, good for indoor or outdoor applications. These Stainless Steel Protector Sleeves prevents cable from wearing into post, and keep to maintain cable rail tension for preventing wire rope vibration. High tensile strength and anti-fatigue strength Weatherproof. Perfect for DIY cable railing project for garden, stairs, and aisles. colour:Silver Material:316 stainless steel size:2cm Package Contents: 20*Cable Railing Protector Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.