I bought this for self-training at home, but I haven't had much opportunity to use it. I've only used it 3 or 4 times, and it's been stored in the warehouse since then. The height can be adjusted up to 3 levels. It has been cleaned. I believe the unit price was 9000 yen on Amazon. This product is the previous model! There's a newer model now, shown in the 6th photo. The specifications are in the 7th photo, and you can also check them on the Field Force homepage. Thank you for looking. Thank you.