Chuckit Small Tennis Balls 2Pk.

These fit my 12-pound poodle's mouth way better than standard tennis balls, and they launch cleanly every time. The two-pack is handy since one always ends up lost under the couch.

My terrier finally stopped choking on full-size tennis balls, and these little ones fit her mouth perfectly. They bounce well on the driveway too and haven't lost their fuzz after a couple weeks of daily fetch.

Bought these to go with the small ball launcher and they're the perfect size for my terrier mix to actually get a grip on. The felt holds up way better than the cheap ones I used to grab at the pet store, and they still bounce fine after a few weeks of daily fetch.