This is an Inductive Rainbow Colour Glass featuring liquid-activated LED lights that change colors.
Function: Automatically lights up and flashes in multiple colors when filled with liquid (water, drinks, or alcohol).
Design: Often features a faceted or "pineapple" texture to enhance the light display.
Capacity: Typically holds 7 ounces (approximately 200ml), though some models may vary.
Power: Usually powered by batteries located in the base.