Designed to fit externally on a 1 3/8" black chain link fence posts Made from high-quality rust-resistant die-cast aluminum, these caps are ideal for outdoor fence use Pack Size: 10 black aluminum fence caps Simple to install and no tool necessary Protect your fence from harmful damage from water and debris by having this pack of aluminum caps Add a finished look to your black chain link fence while simultaneous preventing harmful damage caused by water and debris build-up in posts with the addition of these acorn post caps. Made from high-quality and durable die-cast aluminum, this pack of 10 fence caps are built to last and are excellent for outdoor fences. They are designed to easily fit externally on 1 3/8" black chain link fence posts so no tools are necessary for installation.