Service: We are keeping moving to improve our products to make 100% customer satisfaction. Any question, please feel free to contact us, please directly contact seller for a replacement, we are glad to solve for youMaterial: Environmental friendly materials, safe,durable and bright, qualified with ASTM & CPSIA.Buttons: Switch--Power on and say Happy Birthday or How old are you. Star--Light up candles by clicks, one click, one candle will light up. Balloon--Play the Happy Birthday Song and child can sing alongCandles: 5 Candles. Press Star button to choose ages--click one time, one candle will light up. They can be blow out after the birthday song. Light up candles, play happy birthday song, candles blink and make a wish, then blow out the candles. The hole process is realistic and helpful for kids to enhance their counting ability, motor skills and pretend play interest.Dimension: 14*14*9 cm or 5.51*5.51*3.54 inches