Glow in the Dark Skinny Tumblers for Sublimation, Blanks Stainless Steel Vacuum Insulated Travel Tumbler with Straw and Lid, 20 oz Luminous Water Cup White to Blue, 4 Packs

The novelty straight tumbler with luminous coating which is white in the daytime but emits blue light in the dark after collecting light energy.

Recommend to use a UV flashlight which can make the cup absorb more energy, with longer and brighter luminous effect.

The luminous effect of placing the tumbler directly in the sun is not as good as using a UV flashlight.

The blank surface with polymer coating is great for sublimation.

You can print family photo, pet image, name or other designs on the tumbler, easily get vibrant and permanent unique outcomes.

Perfect as a custom gift for family and friends.

With the technology of double walled vacuum insulation, the travel tumbler can keep your beverages hot for hours without annoying drink “sweat” or water rings.