Fixing deep scuffs and cuts on the heels of a woman's shoe. This job was made difficult as the material was not leather and kept shedding fibers as it was sanded. A better approach would probably have been to cut the surrounded area to make space for the filler. Will try that next time I have a similar job.
Products
Saphir Renovating Repair Creme; Amazon link:
https://www.amazon.com/Saphir-Renovat...

Wren's shoe cream: Amazon link:
https://www.amazon.com/Wrens-Leather-...

Even though I used Wren's, my favorite brand of shoe cream is Tarrago:
https://www.amazon.com/Tarrago-Shoe-C...

Shoe Dye (The one I used in the video I bought at market many years ago and lost the label, don't know what brand it is, but the one I use the most is Fiebings:
https://www.amazon.com/Fiebings-Leath...

Depending on your application, you may need sand paper, I usually use something between 400 Grit and 1000 grit
Also an xacto knife may be useful

thanks