Flexible 16" Rubber PSA Sanding Block, Like the one in the Photos

Probably a long shot here, but I am looking for a sanding block. I've spent hours and weeks trying to find another one like this to no avail.

I have most of the Dura Blocks, Black Diamonds, Acrylics, but this one is my favorite.

There are no part number, model, or brand name on it anywhere, so it's probably a cheap Chinese model, but it's my favorite of all that I have and it starting to breakdown on the ends.

Hoping someone on here might have one like it available.

Thanks,
Tom