Dear BARF: what is this?

[Tumbleweed]

Straw folds up and is compact.

A folding straw?? Because traveling with one's own straw can be awkward and cumbersome due to its size? :teeth

 

[DReg350]

A very small set of nunchucks assembled by someone on their first day on the job while under inadequate supervision. :dunno

 

[tzrider]

I suspect thats a rubber tube that u actually drink through, not intentionally a bungie.

Everything tastes better when sucked through a rubber tube. :barf

 

[CDONA]

Everything tastes better when sucked through a rubber tube. :barf

If only that were true. That brush shown is too big to run thru the rubber hose/bungie.
Stainless is supposed to not add flavors. The brush is to clean out the flavors after using and sanitize.

None of this makes sense!