3", 2-Hole Conduit Strap, Designed To Secure Rigid, IMC Or EMT Conduit To Wood, Masonry Or Similar Surfaces, Strap Has A High Load Bearing Capacity & Snaps Onto The Conduit To Hold It Securely In Place, Also Corrosion Resistant & Meets UL Requirements, Made Of Steel, Zinc Electro Plate, Use Indoors & Outdoors.