Light show color changing poker chip coasters and serving tray Serve more than just a beverage, serve up a light show with these poker chip coasters. The 4 blue, green, yellow, and grey coasters are shaped like poker chips. A money amount, dice, the red heart and diamond, and the black spade and club are on each poker chip coaster. The blue coaster is the $50 chip, the green coaster is the $25 chip, the yellow coaster is the $5 chip, and the grey coaster is the $100 chip. The poker chip coasters are sonic sealed to protect against moisture. Each coaster features an automatic on/off function. When a glass is placed on the coaster, the coaster will light up and the color morphing LED light show begins. The LED lights change a rainbow of colors under the glass, creating a dazzling display. Comes with a clear round serving tray with an acrylic-like finish. The serving tray also looks like a poker chip with a heart, spade, diamond, and club in between each space for the coasters and $100 in the center. The coasters work both in or out of the tray. When the glass is lifted off the coaster, the coaster will automatically turn off. The coasters only light up and change colors when a glass is placed on them. Every coaster operates independent of each other and there is nothing to plug in. The poker chip coasters can be used anywhere indoors or out. Entertain your guests at your next party or card game with a personal light show for every drink. Each poker chip coaster uses 3 AAA batteries (not included). Each poker chip coaster is has a 4.5" diameter and is 1" high. The serving tray has a 13" diameter and is 1.5" high.