The listing, Book Light has ended.
plastic and metal
silver and black
5" in closed / off position
7 1/2" in open / on position
uses (3) LR44 button cell batteries (3 used batteries included) I don't know how long they will last as I used it quite a bit when I first got it
it's a great reading light
the metal clip slides on a small group of several pages beyond the section that the reader is currently reading
push the button on the side to turn it on
then pull it up to extend to the best position
free shipping to USA only