2 pcs Motorcycle Exhaust Can Muffler: 1 pcs 42mm x 80mm & 1 pcs 42mm x 140mmMotorcycle Exhaust Can Muffler Removable SilencerUniversal Muffler Removable Silencer for MotorcyclesReduce deep note sound;Removable;Easy installationNote: (IMPORTANT) No Instructions Included;Professional Installation Is Highly Recommended Material: Stainless SteelColor: SilverSilencer Length Type: shortLength: 80mm & 140 mmOutside Diameter: 42mmThread Size: 6mmPackage Contents:2 x Motorcycle Exhaust Can Muffler Insert Baffle DB Killer SilencerOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.