A catenary wire strainer. It is used to tension catenary wire, which is a type of wire that is used to suspend cables and wires from ceilings and other overhead structures. The strainer is made of high-quality materials and is designed to provide a secure and reliable connection. It is suitable for use in a variety of applications.Easy to use and can be installed with a standard screwdriver. It is also resistant to corrosion and wear, making it a long-lasting and reliable product. · · · Steel Catenary wire · · Wire – Bright Zinc Plate Finish (electro-galvanised) · · Long-lasting and reliable · · Can be used with a variety of cable sizes