●Size: Inner diameter 4 inch clamp, joins 4" OD-ID slip fit pipe. Width of strap: 1.22 inch / 31mm. Thickness of strap aprox: 1.89mm. ●Material: Premium T-304 stainless steel band to ensure durability & corrosion resistance, zinc-plated M10 bolt and nut, steel gasket, aluminum alloy I-block. ●Easy to Install: No welding design, pre-attached hardware for fast and accurate installation, or remove. ●Application: An effective way to connect most exhaust system components, aslo can be used for muffler repair or catalytic converters. ●No Damage to Pipe: Unique sealing and high clamping loads, it does not distort your exhaust components and provides flexible removal.