As you can see , there are lots of scratches and one half of the yoyo's colour is starting to fade away. Oh i forgot to mention the word "dings". "Dings" is a term used by yoyo players when there is a deep scar in the yoyo or even a scratch. The tools used to satin ( rim repair ) this yoyo is a coarse sand paper , fine sand paper, and a driller.
The coarse sand paper is to repair the deep scars and to make the surface even again. The fine sand paper is to smoothen out the surface so that its not so rough during play. Lastly , you will need the driller to sand off the yoyo's surface by clipping on to the axle , turn on the driller and start sanding off the yoyo's surface.
This would be the end result.
Here is the video for the whole process of satining ( rim repair ) of an 888.
By the way , this credit goes to Ryan Lim for giving me a hand in satining this yoyo. Thanks bro ^^