Vance & Hines V46780 Monster Round Slip-On Mufflers Black/Chrome Tip for Touring 17-UpDescription for Vance & Hines Monster Rounds Slip Ons Black The Monster Rounds produce that deep and mellow rumble that wins the hearts of many touring riders. Perfect for enjoying your stereo on the highway, Monster Rounds feature blue proof technology and a C NC machined billet end cap for an impeccable appearance. Monster Rounds Black match the same deep rich tone of the Monster Ovals in a 4" round that fits perfect on CVO Dressers with extended