To change the batteries on the lamp you need to unscrew the silver part at the top (turn anticlockwise) then pull out the white plastic part underneath.
Once that is out you will see the two button batteries. Slide them out of their location, and then slide two new ones back in the same place.
Note the positive side of the batteries (the flattest side) faces down.
Then push the white pact back into the top of the glass, and screw the metal part back on.
Material: Glass, LED, metal and cardboard
Size: 180 x 95mm
Warning: This item is not a toy, keep batteries away from children.