You haven't put anything on to show the scale, like we put a coin with a plant if no measuring tape. So please please give a hint to size.
(Did I hear no chance)
It's a big ball of compacted eaten stuff but I can't remember what they call them but I've seen vets posts re. dissolving them with coke (drinks variety)
Fingers crossed that does the trick and is a lot more comfortable. I'd never seen/heard of it until recently so weird that yours came up with it too. Coke is definitely cheaper than gastroguard!