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This is a 30 oz double-walled stainless steel tumbler printed with a math-and-watermelon graphic. The two-layer air seal holds cold drinks up to 24 hours and hot drinks up to 6 hours, and the steel resists rust, staining and corrosion. It suits teachers, students and anyone who wants a large desk or commute tumbler with a playful print. It is hand wash only, which puts it behind dishwasher-safe rivals, and the print is the main draw over plain stainless tumblers.
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Lowest price we've seen: $18.24 on Nov 11 at Amazon. Tracked across 1 store since Nov 11.
This is a 30 oz tumbler with a Math and Watermelons design featuring mathematics calculation numbers. It has a cylindrical shape and a double-walled stainless steel body.
The stainless steel is durable and resists rust, staining and corrosion. A two-layer air seal helps the tumbler keep drinks cold for up to 24 hours or hot for up to 6 hours.
