LED pillar candles are ideal lighting options for Halloween pumpkins, weddings, vigils, churches, concerts, parties, restaurants, home and more. Completely heat-free and flame-free, these LED candles are a much safer option than traditional candles. The yellow LEDs measure 3.5" tall and flash in a way that simulates a flickering flame, so they look just like real candles! Batteries are included. Also they can sense your breath - you can blow at the candle's wick and watch it turn on and off. Each box contains 1 LED pillar candles.