Copper dowsing rods. Ships from China. 

Dowsing rods are tools used primarily for the practice known as dowsing or divining. This ancient technique, which dates back thousands of years, involves using the rods to locate hidden things underground such as water, minerals, or other hidden objects. The typical dowsing rod is shaped like a "Y" or "L".
 
When used in "L" form, a pair of rods is held loosely in each hand, and the dowser walks over an area as the rods swing or cross to indicate the presence of the object being sought.
 
Dowsing is used in various parts of the world for purposes ranging from groundwater prospecting to archaeological and spiritual uses.