Description: Useful tool: This exhaust muffler is an upgrade part for the exhaust tube and is suitable for 51mm diameter tube. Simple installation: This exhaust silencer is convenient to install and use and requires no special tool. Strong structure: Mainly made of stainless steel, this exhaust muffler is durable, long-lasting, anti-wear and is not easy to be damaged. Useful tool: This exhaust silencer not only make your motorcycle look stylish, but also reduces the noise. Nice replacement: This exhaust muffler is strong and sturdy and is a good one to replace the worn or damaged part. Specification: Material: Stainless steel. Color: Show as picture. Size: Approx. 12.6cm/4.96 inch. Diameter: Approx. 5.08cm/2.00 inch. Note: There might be a few color distortions due to different computer resolutions. There might be a slight error due to different hand measurements. Package Includes: 1 Piece Exhaust Muffler.