FULL SET - Invite your friends, invite your family. You will receive 24 pieces of flash light-up cups (the cup capacity is 2 ounces), adequate for entertaining guests during a party or family gathering; good times will be shared by all. Reliable material: The light-up cups are made of acrylic material instead of glass, making them stronger, durable, and not easy to break. The transparent color allows the flashing colors to be clearly visible when the button is turned on. Colorful LED lamp: The fun drinking glasses come with an on/off switch that activates the colorful LED lights, creating a variety of alternating flashing effects. Three button cell batteries are installed at the bottom of each cup, providing energy-efficient performance with a long service life. Add fun ambiance: These flashing light cups create a surprising visual appeal when the lights are turned off in the room or at a party. PARTY TIME - Suitable for various occasions such as birthday parties, weddings, nightclubs, holiday celebrations, sporting events, festivals, night events, and bars. Bring them to music festivals, concerts, or sporting events—they’re sure to make you stand out.