Specification: inner diameter: 1.75 inches, used for exhaust pipe/muffler with outer diameter of 2 inches, etc. Material: stainless steel, rust-proof and corrosion-resistant. Reusable and long service life. Use: Just tighten the bolts, which is convenient to install and saves time and labor. Design: A 360-degree full clamping area is designed, and the clamping force is evenly distributed in the whole 360-degree range to prevent leakage and control pipeline deformation. You will receive two 1.75-inch butt exhaust clamps.