One-size-fits-all safety Cantilever Roller Covers for Chain-Link Fence Framework are constructed from heavy-duty, thick-gauge galvanized steel for ultimate weather and corrosion resistance in outdoor environments. They help keep your cantilever rollers protected and increase their lifespan without compromising performance. They're highly effective at preventing injury, and they are also easy to install. Once they're in place, they provide an important layer of protection for both gates and people.