This is one of the coolest instruments ever! We've all heard it in some of our favorite horror movies (its used a lot in THE HUNGER). It makes some of the creepiest and other worldly sounds ever heard IMO. They can be played with a bow, a mallet, or even just bumping it with your hands. I dream of finding one of these in a garage sale one day for 5 bucks because they are kind of pricey.