This is a drum stool/drum throne from K&M, a leading manufacturer of stands. It was sold at Soundhouse for 27,000 yen. It's now discontinued and no longer available. https://www.soundhouse.co.jp/products/detail/item/47687/ It has a height adjustment function. I don't think there are many drum stools that can be adjusted to this height. It's also perfect for a keyboard stool. I think it's also useful as a high stool when playing guitar. ■ Drum seat ■ Seat: Synthetic leather ■ Seat size: 380 x 350mm ■ Weight: 5.6kg ■ Height: 610-910mm Please ask any questions in the comments. I have various other items for sale, so please take a look.