Sara 3 LED battery candles from Sirius, is made of real wax and has a smooth surface. The lights have a very warm and natural light. The Sirius lights have a diameter of 7,5 cm and 10-12,5, and 15 cm high. The candles are battery operated and have built-in timer function. The light automatically turns off after 8 hours if you set it on 8H function. After 16 hours, the light will automaticly turn on again. You can also just use the on/off buttom. The bulb is shaped as a flame and is moving just as a real flame. The candles are packaged in a beautiful gift box. Batteries not included. You must insert 2 x AAA batteries in the bottom of each the light. You can buy very durable Sirius batteries Art. 88802 here.