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This is a 30 oz double-walled stainless steel tumbler printed with a James Webb Space Telescope design, sold through print-on-demand marketplace Printerval. The vacuum-sealed body is rated to hold cold drinks up to 24 hours and hot drinks up to 6 hours, and the steel resists rust and staining. It is a gift item first: the astronomy artwork is the draw, and the hardware is the same generic 30 oz tumbler blank many print shops use. Buyers wanting a branded, tested daily driver should compare it with insulated cups from Yeti, Stanley or Owala, which add handles, lids with straws and dishwasher-safe parts.
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Lowest price we've seen: $26.99 on Nov 11 at Amazon. Tracked across 1 store since Nov 11.
This is a 30 oz tumbler with a James Webb Space Telescope (JWST) design. It has a cylindrical shape and is made of double-walled stainless steel.
The stainless steel is durable and resists rust, staining and corrosion. A two-layer air seal helps the tumbler hold temperature, keeping drinks cold for up to 24 hours or hot for up to 6 hours. The tumbler should be washed by hand only.