Payment for healthcare is indeed seriously f’ed up in the US.
But that’s seems pretty irrelevant.
The answer is almost certainly as @ogiewon explained.
Someone already cut into the tennis balls, then they were packaged as a pair, so they could be marketed as “for walkers.”
Buying a larger package of tennis balls and cutting them oneself would of course be more cost effective. DIY generally is, but can have other downsides. Like cutting yourself with a knife blade, or falling off your roof, for example.
Blue Stilton - yes. Don't know Silverskins...later today I'll be down that rabbit hole. Off to run my errands so my wife doesn't kick me out of the house!
Never seen or heard of those. So you slice them up in into rounds and munch on them while you're eating your fish and chips? Big fan of onions and fish and chips, so this could be a good one for me.
