Thank you for viewing. Long Cornet YAMAHA YCR-232 Key: B♭, Large Bore: 11.76mm, Yellow Brass, Bell Diameter: 130mm Pistons are smooth. The 3rd valve slide trigger allows for smooth pitch correction. Good airtightness and a light, clear sound. After pre-treatment, the lacquer was removed with solvent, then 8-stitch processing, brushed up satin finish, and rust prevention spray applied. No pitch deviation in the range, with a dry and core-filled tone. Both the appearance and sound are jazzy. Suitable for soloists, bebop performances, big bands, instrumental bands, trios, fusion bands, 16-beat, bossa nova, rock, standard jazz, popular music, contemporary jazz, mellow mood music, etc. There is a slight bend in the bell. This does not affect the sound. The original bell material is yellow brass. YAMAHA uses a 7:3 ratio of copper to zinc. This has been stitch-processed. For reference, red brass bells have a 9:1 ratio of copper to zinc. Yellow brass is easier to process, and the finish and tone are jazzy and a good match. Mouthpiece: YAMAHA 9, Cup Diameter: 16.3 The rim thickness, cup volume, and contour are standard types. The original hard case shows signs of aging, but the hinges and handle are in good condition, and it functions as a case. After soaking in a baking soda and citric acid bath, the inside of the tubes were cleaned with a wire brush and neutral detergent, making it very hygienic. It is ready to play the moment it arrives! Why not enjoy a performance with this unique cornet! Thank you for your consideration.