The Cerveny CEP531-4MR 4 Rotary Valve Euphonium is a true European designed oval euphonium. The Cerveny 500 Series euphoniums feature a yellow brass construction with a nickel-silver mouthpipe for a centered tone with excellent response. The Cerveny 351 Euphonium has a lacquer finish and includes a case and mouthpiece.The 5314MR Oval Euphonium is a truly unique instrument with a design that has been common in Europe for many years. This is called an “oval” euphonium because the bell follows the natural wrap of the tubing and points to the left of the player. This instrument has four front action, mechanical linkage, rotary valves for a quiet yet quick valve response. The large bore gives a full sound and the oval wrap provides an excellent tone color.