Green Link has changed the composition of its straps and caps from urethane to injection molded glass-reinforced nylon, still retaining the striking “safety yellow” color. The straps are designed for heavy pipe, while a cap design was developed for lite pipe supports. The Heavy Pipe KnuckleHead strap secures a 2 1/2" nominal pipe. The Lite Pipe Support cap is designed to secure a single 1” nominal pipe or two 1/2" nominal pipes. Pipe supports straps and caps are attached with standard stainless-steel screws, which are supplied with the heads.