Thank you for viewing. This is a ROC-N-SOC backrest. It is a set of the pad, mounting bar, and bracket. Retail price: 23,100 yen (tax included) Part number: BRWB-G Color: Gray It was used for electronic drums indoors for about a year. There are some scratches on the bar as shown in the image, but the seat is in good condition and clean. There are also images of it paired with the throne I was using, so please take a look for reference.