Description:  This is a very inexpensive yet extremely useful tool for removing pressed on watch backs.  Super simple to use, just wedge the sharp blade in between the back of the watch and the ridge located on the back cover, press frimly and then pry open.  In my opinion one of the better options on the market for opening watch backs. 
 
Approximate Size:  4 1/2" long with a 3/4" long blade
Material:  Steel
 
Made In China