Material: Made of 304 stainless steel, zinc-plated M10 bolt and nut, steel gasket, aluminum alloy I-block.Size: Joins 2.25" OD pipe to 2.25" ID pipe, width of strap: 2.94inch /74.82mm.Application: Universal fitment. Designed to fit over clip joints, making it easier to joint exhaust pipes together, perfect for exhaust tips, mufflers, cat back systems, racing exhaust, and show cars.Easy to install: The weldless design makes installation of lap clamps quick, easy and accurate. It is removable and reusable. Simply place one of the nut bars on one side and insert the bolt, place the other nut bar on top and screw on the nut and the job is done.Feature: Conforming to pipe and flex pipe, the "I" block that comes with the exhaust fitting provides a complete 360° equal distribution of tensile force without twisting the pipe, creating the best possible seal without twisting the pipe, this exhaust band clamp is specifically designed for exhaust pipe connections. Note: Professional Installation Is Highly Recommended (No Instruction Included) Material: T304 Stainless Steel Designed to fit over clip joints, making it easier to joint exhaust pipes together Perfect for Catback Exhausts, Mufflers, Downpipes, Headers, Manifolds Engineered And Tested To Exceed Original Equipment Standards And Performance Package includes: 1pcs x Exhaust Band Clamps