Each glass is liquid activated (see video) & will turn off automatically after the liquid is emptied from the glass. Incredible new line of LED light glassware that makes a bold statement. Made of a hard, durable plastic of the finest quality, each set of 6 LED champagne glasses has one each of red, orange, yellow, green, blue & pink glasses. Perfect for weddings, new year’s celebrations & any party where a bit of glow can really set a mood. A great conversation piece & perfect gift for anyone! Holds 4oz of your favorite bubbly drink. Each glass measures 2.6 in diameter & stands 7.2 tall. Set Of 6 Color Led Champagne Glasses - Liquid Activated Glowing Flute Glass