Thank you for viewing. I purchased this new from Yamano Music about 6 years ago. There are no instructions, and the details are unknown. m(_ _)m I am selling it to organize my belongings due to moving. I used it only for home practice (almost no outdoor practice), and occasionally. The seat surface has no peeling, and I think it's in pretty good condition. ◯ Approximately 44cm from the floor to the seat surface... It can be raised about 1.5cm in the area shown in image 8, but I don't recommend it because it can fall down suddenly if moved vigorously. (^^; ◯ Seat diameter: Approximately 30cm, Thickness: Approximately 7cm ◯ Image 10 area... It wobbles about 2-3mm if moved vigorously back and forth or left and right, so please be aware of this if you are concerned. There is some rust or dirt on the metal parts, so please check the images up close. This is a used item, so please consider purchasing it after agreeing to the above description. It will be delivered with reinforcement, waterproof measures, and cardboard packaging.