Olorful LED Glowing Beer Cup Induction Flashing Wine Glass Party Bar Drink Cup Features: Perfect for men, women, adults and children, each tumbler is made from durable, food safe acrylic. Easy to clean, just hand-wash and allow to dry. From weddings to birthdays to New Year’s holiday parties, Light Up Glassware adds an extra level of to any special occasion! Each glass lights up when ever liquid is present and turns off when empty. Works with any drink. Two batteries are included with each cup. Give your guests a. Make memories that last with a gift that your will cherish. Available as singles, and sets of 4 or 8 tumblers. Whether you need to spice up a birthday party, anniversary, Halloween, Thanksgiving, Christmas, New Years or holiday party, So There Light Up tumblers are the perfect choice. for kids and adults, these glasses light up, change colors and flash whenever any liquid is present in the cup Product Description: Package includes:1pc 2pcs 3pcs AUTOMATIC ON OFF - Just add liquid to activate the flashing multicolored LEDs in the base of the cup. The lights turn off when the cups are empty. When activated, the LEDs flicker, change color and glow in a beautiful changing rhythm that is sure to delight. PERFECT FOR PARTIES AND SPECIAL OCCASIONS - Best drinkware party favors or decoration for Christmas, New Years Eve, birthdays, weddings, shots, bars, night clubs or discos. ELEGANT CUT GLASS DESIGN - The sparkly pineapple crystal style design show off the blinking LEDs for a cool glass your guests and friends will remember and covet. Customer Service:If you have any questions about this product or encounter any problems,just feel free to contact us to get a satisfactory solution within 51 hours. Good quality,creative exterior design,and timely customer service