I carry one of these. At
92 grams and extremely small, I like it.
Yes I've had reason to use it. Most recently on a rim brake pivot bolt.
Even has a chain tool.
Topeak Ninja 16
OH and if you're in CA.... Many don't know
AAA will come get you and your bike. Really -
https://calstate.aaa.com/membership/...p=not_assigned
Told you so !