Motion nightlight Blue liquid green lava nite lite night light This night light is made of a hard plastic. With silver plastic on the top and bottom of a clear plastic center. Inside the clear plastic center is blue liquid and yellow wax. When on, the yellow wax heats up moves around the blue liquid, like a lava lamp. This night light has an on/off switch. This night light is 7.75" high by 1.75" wide. The bulb is included.