SIZE: 2" [1 7/8" OD] posts and 1 5/8" rails Made from high-quality and durable die-cast aluminum PACK SIZE: 10 chain link fence loop caps Easily fits the exterior of chain link fence posts for top rails the slide securely through Please measure your posts and rails carefully before making purchase to ensure a great fit These Aluminum 2" (1 7/8" OD) x 1 5/8" loop caps fit atop line posts in a chain-link fence, allowing the top rail to slide securely through. When using a top rail for a chain-link fence, one loop cap per post is required. These aluminum loop caps fit around the exterior of a 2" (1 7/8" OD) post and accept a 1 5/8" top rail, forming a strong, stable connection. They're easy to install and engineered to deliver years of top-level performance.