2 premium stainless steel T-bolt hose clamps (including hardware) .; Clamp Diameter (inner diameter): 82mm - 90mm (3.23"-3.54").; 19mm (3/4"); 0.8mm material thickness (most of our competitors are only 0.6mm thick) .; Strong, rust and weather resistant premium 304 stainless steel; Includes galvanized steel bolt and nut hardware.