Effective Protection: These cable railing protector sleeves fit 1/8inch, 5/32inch, and 3/16inch stainless steel wire rope cables, providing effective protection for metal posts by covering holes, and reducing the risk of corrosion and rust inside the railing column. Prevent Wear: Cable railing rubber grommets eliminate direct contact between different metals, minimizing electrolysis. By acting as a buffer, these protector sleeves prevent the cable from wearing into the metal or composite posts, ensuring the and integrity of your cable railing system. Compatibility Size: Cable railing grommets are designed to fit 1/8inch, 5/32inch, and 3/16inch stainless steel cables. Overall Length of Sleeve = 13/32inch, Flange Diameter = 21/32inch. These cable railing kit protector sleeve rubbers fit most cable railing 2x2inch, 4x4inch metal posts, can work on level Metal Cable Railing, also can work for cable at any angle. Durable and Corrosion-Resistant: These cable railing grommets are made of High-quality materials, with excellent temperature stability and are corrosion-resistant, which makes our balustrade hardware suitable for installation. It is the perfect choice for indoor and outdoor cable railing protection kits. Versatile and Easy Installation: The invisible opening design of these protective sleeves allows for easy installation on hollow or metal posts. They can be used individually to protect the cable and post junction or combined with cable railing tension ends for complete coverage of metal post holes. Material: Silica gel colour: White gray Package Contents: 300 x cable railing rubber grommets Only the above package content, other products are not included. Note: Light reflection 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.