【Product Description】 Brand/Manufacturer: Yamaha Model Number: YEP-201 Quoted from the official website: Expressiveness that allows you to play widely, from British-style brass bands to wind orchestra sounds. Thick and rich low range and clear sound. It achieves a comfortable resistance and flexible controllability. B♭ tube. The valve system is 3 pistons. The bell is yellow brass, 280mm in diameter, the bore size is 14.5mm, and the finish is clear lacquer. 【Condition of the Product】 There are dents on the main body. The case is deteriorated and dirty. Accessories include: ・Yamaha mouthpiece *The following are included as extras, but are a used, but ready-to-use maintenance set: ・Yamaha Valve Oil Regular (may be slightly leaking) ・Yamaha Slide Grease Stick Type ・Yamaha Mouthpiece Brush L ・Yamaha Brass Cleaning Swab TB・EP ・Storage bag Shipping will be done by wrapping the hard case with bubble wrap. I'm not a euphonium player, so I can't say for sure, but it seemed to be fine when I test-played it. ※The following is the current detailed condition↓ All the tuning slides are not stuck and can be smoothly removed and inserted. Before shipping, I will apply grease and insert them all the way. I don't think there are any issues with the pistons getting stuck or returning slowly. I will re-oil them before shipping. When I got it used, the 1st piston was slightly slow to return, but it was fixed after I oiled it every day for a while, so if it's slow to return, you can take your time with the evaluation and keep oiling it to see how it goes. The piston screws, both top and bottom, turn without any problems. There is no issue with them not closing properly. The springs inside are somewhat deteriorated, but there is no serious damage, so there should be no immediate problem. The spit valve cork is slightly deteriorated, but it should be fine for a while. There is some dirt inside the tubes, but it doesn't seem to be enough to interfere with playing.