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These are fine, but I wish I’d bought more of the Yoassi brand instead. Two reason:
1. The Yoassi handles are quite a bit wider. So if you have a wide-mouth mug, this may not fit.
2. The Yoassi is all stainless steel; it doesn’t have the plastic handle covers. Those are entirely unnecessary. I’ve never burned my fingers with the Yoassi’s. The plastic is unnecessary and bad for the environment.
The one advantage these have over the Yoassi brand is that they’re several dollars cheaper. Percentage wise, it’s a lot. On the other hand, it’s just $4 or so.
I use big mugs and try to avoid plastic wherever I can, so for me, the savings wasn’t worth it.