Product Specifications

• Design: Temperature-Responsive Color Change
• Color Effect: Turns Red When Filled with Cold Drinks
• Glow Feature: Absorbs Light and Glows in the Dark

How to Use

Pour a cold beverage into the tumbler and the exterior will gradually change color. For the glow effect, place the tumbler under a light source for a short time, then move it into a darker environment to see the luminous details.