4" Wax Flameless Flickering LED Pillar Candles are romantic and safe to use all night, every night! They are made of real wax and have a slight scent of vanilla. They are great for gifts, centerpieces, mantels, weddings, outdoor and night time events. To enjoy the realistic light flickering function simply slide the button to the ON position on the bottom of the 4" Wax Flameless Flickering LED Pillar Candles. 3 AAA batteries are included and replaceable.