how can I clean this?

[lhastingsmua]

I have had this card holder for a year now.

The first photo was taken a month ago, the second yesterday.

God knows how I’ve managed this but now my card holder is scuffed in virtually every corner, and the pale pink stitching throughout the item has turned greyish, which ruins the look of the item. Is there a way that I could clean the stitching back into being pink again? Any other tips on how to recover it? Thanks

I know people use baby wipes on leather sofas?
I'd use one of those cleaning blocks - they're like a solid spongey polystyrene , Magic Eraser or something? Or This Works.

I had some (QVC ) used it slightly damp on wallpaper to lift scuff marks, worked really well , no damage.
Could be ok on a wallet?

Get some leather cleaner from Collonil.