Maybe, like, double the size of a regular tennis ball? To make it easier to catch?

Ignore the smashed china and pottery behind me.

*ask me stuff on https://ask.rivals.space/u/rinavolpina@rubber.social*
#AskMeStuff

@RinaVolpina interesting, I'd go with ping pong ball sized so I can hold it in my mouth, but made of rubber
@mindpersephone oh, I have one of those too! But the ball’s got holes in it and it’s got these two weird straps coming out of it for some reason?
@RinaVolpina weird. Maybe it's so your owner can throw it better, like a sling or something.