Korg Concert C-30 parts needed

I need rubber contact strip for the Korg Concert C-30.
This is a 88 key digital piano. The sensor board has Yamaha label, along with ae88h, xc265, tcmk-137hb.

The broken part is in white color. Basically someone hit the keys so hard that the rubber contact strip developed holes.

Is this part the correct part? And does anyone know what this does?

Thank you.

Summary

https://i.imgur.com/Bji43XD.jpg

That’s the contact strip we have listed for the C30. It makes electrical contact when a key is pressed (there are conductive carbon strips on the rubber). Yamaha manufactured the keybeds that were used in this Korg piano.

Thank you.

It looked like it was made completely of rubber.

I thought the vents or see through slits were used by some optical sensors.
Thank you again.