because of the Cat's whiskers, they can`t eat from the bowl edge. this insert centers the food for them so that they can eat it all.
this insert fit and design for this automatic feeder, 150mm diameter bowl.
https://s.click.aliexpress.com/e/_DDXaM5V
it can also be a bowl for cat food as it is not an insert.
donation:
paypal.me/IfrahOmri
The author hasn't provided the model origin yet.