Seat diameter: 33.5cm Seat thickness: 11cm Minimum seat height: 51cm Maximum seat height: 78cm Seat height is the distance from the floor to the seat. This is a rough measurement, so please use it as a reference. This is a screw-type drum stool. It's a chair that can be set relatively high. The minimum seat height is 51cm, which is a bit high, so it's not suitable for those who want to set it low like Karsuke Kawamura, but it's good for those who set it high like Chris Dave. It's also good for concert snares, timpani, and instruments other than drums, such as guitars, basses, and keyboards. The seat is made of brown synthetic leather, which is a bit rare. The stand is clean and does not show any major rust. There are two tears on the side of the seat. The front and back are very clean. Please check the photos.