Description: Purpose: This exhaust muffler can effectively reduce deep note sound and reduce noise contamination. Material: The motorcycle exhaust silencer is made of high quality stainless steel, durable and sturdy. Features: adjustable and removable, easily reduce deep note sound. Sizes: Various sizes to choose, please note the pipe diameter should bigger than muffler diameter. Package: Includes 1 piece noise Elimination, suitable for most motorcycles, ATV and scooters. Specification: Material: Stainless Steel Size Chart: Sizes Optional: Pipe Dia: 25mm/0.98inch 35mm Long: End Dia: 35mm/1.38inch; Total Length: 140mm/5.51inch 45mm Long: End Dia: 45mm/1.77inch; Total Length: 140mm/5.51inch 48mm Short: End Dia: 48mm/1.89inch; Total Length: 76mm/2.99inch 45mm Short: End Dia: 45mm/1.77inch; Total Length: 80mm/3.15inch 42mm Short: End Dia: 42mm/1.65inch; Total Length: 80mm/3.15inch Package Includes: 1 Piece Motorcycle Exhaust Muffler Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!