That's it really, if anyone could use it I would happily post it to you free, I hate to waste anything. I bought the wrong size off Amazon and can't return it. They will fit a medium size Bento Ball, chicken flavour.
I now have a greyhound looking at me with a disappointed face.
The image is the refill that is too small for my dog's ball, the other picture just shows the Bento ball that it will fit. I'm just sending the refill not the ball.
PM if you want it, it's too small and a choke hazard for my houndie.