Material: Made from 304 stainless steel material, this Exhaust Clamp is rust resistant and sturdy enough for long term use.Easy Installation: No welding design makes this Butt Joint Band Clamp Sleeve Coupler easy to install and disassemble, providing a simple yet effective solution for connecting most exhaust system components.Unique Feature: The Exhaust Pipe Clamp ensures even distribution of force around 360 degrees, providing a seal that prevents material deformation with a torque of 63 Nm.Application: This Butt Joint Stainless Steel Clamp Band is a simple and effective way to connect different sized pipe, mufflers, catalytic converters, and other exhaust system components. It can be used for repair and modification.Package Includes: Each package comes with an exhaust pipe stainless steel reducer clamp. Specification: Length7.6cm/2.99inch, Small Mouth Dia5.1cm/2.01inch, Large Mouth Dia5.6cm/2.20inch Package Includes: 2Exhaust Clamp Note: Please allow slightly errors 1-2cm differences due to manual measurement.