Wax coated with a rough texture. Gives off a soft, flickering, ambient glow. Twist off the bottom cap and insert batteries at the time you want the candle to start glowing. It will shut off automatically in 6 hours and come on again the next day at the same time. To reset, twist the cap at the desired time enough to break the connection then twist back on. Requires 2 AA batteries (not included). Holders sold separately.