Exhaust Clamp Butt Joint Band Clamp Sleeve Coupler Stainless SteelFeature:1. No welding design makes exhaust clamp fast, easy and accurate installation. Arc curved face,capability prevent exhaust gas and noise leaks. Exhaust clamp is removable and reusable.2.The reaction block provides a full 360 equal distribution of stretching forces, prohipiting pipe distortion while complesing a seal round the joined exhaust components.3. Butt joint band clamp is a simple, effective way to connect most of exhaust tube and muffler components. Aslo can be used for muffler repair.4. 304 stainless steel band, zinc-plated M10 bolt and nut, steel gasket, aluminum alloy I-block.Easy to Install( No Welding Need)1. Make Sure No Missing Parts.( if there are any problems regarding our clamps, please leave us message)2. Put Nut Bar on One Side and Insert the Bolts, Then Put Another Nut Bar on(Notice:Put Arc Curved Face Toward to Exhaust Pipe.)3. Finally Screw the nuts to Connect Pipes.