FAMI 6 Glasses LED Wine Champagne Light Up Glasses Champagne Flute Cups Liquid Activated (6 Different Colors Cup) Liquid activated - Instantly activated by liquid, Deactivates once liquid is out. LED Light - Cool LED embedded at top of stem. Cup Size - 5.28-Ounce champagne glass size. Safe Material - Made with PS material, safe for drinking. Power - Batteries included and pre-installed.