Junk Item B♭ Clarinet Genuine Leather Thumb Rest Cushion

Crampons, compatible with adjustable thumb rests.
Please note that they may not fit, and this is at your own risk.

Used only once.
They didn't fit me, so I stopped using them, but by mistake, I washed them, and the leather has become stiff.
Therefore, this is a junk item.
If you can restore them, please consider them.