Features: Safe material. Made of food-grade plastic, this champagne glass is harmless to human health and safe to drink from. Liquid activation. Two small contacts on the bottom of the glass activate the LED light. The LED lights turn on when liquid is poured into the glass and turn off when it is emptied. Colored light reflects from the liquid through the sparkling crystal embedded in the bottom of the glass, creating a beautiful visual effect. Using a CR1220 button battery, the LED light lasts for up to 24 hours. It can also be used as a regular champagne glass. Eye-catching. This novel and chic champagne glass is ideal for parties and gatherings, making you stand out. It attracts attention in bright rooms and is even more striking in dim lighting, especially in colorful spaces where its beauty adds to the festive atmosphere. A perfect gift for friends and family. This champagne glass is an excellent gift. The colorful LED glass creates a festive atmosphere and is a perfect decorative item for champagne or wine, ideal for club decorations, Halloween decorations, home decorations, bar birthday decorations, party decorations, etc. Product features: Note: Due to differences in monitors and lighting conditions, the actual color may vary slightly from the image. Specifications: Material: PS; Dimensions: 6.8 * 18 cm (height), 5.2 cm (mouth diameter); Capacity: 150 ml; Includes: 6 cups