Thin cup with flimsy lid

I'd pour 3/4 boiled hot water into the cup and 1/4 cold milk, and the cup will be too hot to hold. I often had to double cup. The lid is only good for one time use. They're kind of flimsy. At work, I try to use the same cup for refills but once I remove the lid, it often tears below the mouth opening. Even though you can still put the lid over the cup, you won't be able to drink from it without leakage from the rim. I would not purchase these cups again.

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