They're made from real wax, but have no flame. Our set of 4 Flameless LED Candles use LED's to give a realistic flickering glow. The wax is sculpted to simulate the effect of a real candle. The on/off button is located on the base. The set contains 4 candles, measuring 2",3" and 4" high with a 2" diameter. Each candle uses a 3v button cell battery- included.