This clarinet has been completely disassembled cleaned and oiled inside and out. Then each key was hand buffed, new cork and pads were installed also spring replaced as needed. Tested for leak and adjusted the keys to the best of my ability. Played the scale and tested each key and sounds good to me. What you see in the pictures is what you get. Serial Number on both parts as shown in the picture is 48469 and made in France. Mouthpice is HS** Made in France as it says on it.