Flameless candles give the warm, inviting glow of a fire without the actual danger of an open flame. Made from real wax, but lasts a lot longer than a traditional candle. Candles flicker with a realistic flame from the inside. Each candle requires 3 size batteries not included. For maximum performance use alkaline batteries. Turn your candles on and off with our easy to use remote control included Remote control also features a 2/4/6/8 hour timer, adjustable dimmer and flicker flame options. One remote can be used for multiple candles. Remote operates when candles are set to the on position . Requires 1 button cell battery included. Dimensions Small 4 high x 3 diameter. Large 6 high x 3 diameter. Material s wax.