Four New Thermos Mugs

I haven't been very successful with getting a thermos mug that could last. The one I am using is only about six months old but already rusting in the bottom.

I often could get such mugs from Takashimaya which we rarely go these days. I think the last time we were there was almost a year ago.

Bought these four at two for $35 at Takashimaya tonight.