What type of piano stool should I get?

I was just wondering I need it to be adjustable.. it will only be me using it for piano practice. I do want some storage so I can store away my piano books.
I was thinking about getting a ‘tiger piano stool’ from..

If you can track one down, there used to be a old-fashioned type of piano seat which was height-adjustable by sliding the seat into different levelled slats (like adjusting the height of shelves on one of those bookshelves with adjustable shelf heights). Then, underneath the seat, there is a large storage area for your music (like a box, which the seat sits above).

I have one and it’s wonderful!

EDIT: The « Tiger’ looks like a perfectly good adjustable piano stool. However, there is no storage area for music, which is what you said you wanted.

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